โจทย์สมการเชิงเส้นตัวแปรเดียว ตอนที่1

<br> <h2 style="tab-stops: list 36.0pt; text-align: justify; text-justify: inter-cluster;"> <span lang="TH" style="font-size: 16.0pt;"><span style="mso-spacerun: yes;"></span>โจทย์สมการเชิงเส้นตัวแปรเดียว ตอนที่ 1</span></h2> <h2 style="text-align: center;"> <span lang="TH" style="font-size: 16.0pt;"> </span><img class="rg_i" data-sz="f" name="UbiWK_x0-XHDlM:" 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nzNR9FtiWUsQ5u4s3mD41ecC4nEDEBYiTHv2o3KBOt+gqiwMqrIjSLqUMCy+Kg7it5nf0hQJhzDgIRH2ikSNa1ri21utSjCZtIvay6LaSxt6X6UxANqbK7U9ANqyjytQ103ejFIG5pN6NqILUigaelxLMFUm4QFVHgCSx+ZpkUYWpoDS8BAZZUjXm7Kg8LswUX+NT8LgEfCzN/xYmif1iOpH28nMZ99OcJQ/pcLdFfXb/tgyf+tB0jxZPK6yvGjPHB+sceyouQCfWx91QGq9yYsIsR3rBYmbT+80loPgBIW+6Kopajoy4pKm1WeVYaI6nnLdnHYlUt2js19KKTst7MSxvYDqSBSc8ij1K0MZiV0D9mXMljqZL6iLkHRffxqSqY04rbU3oo7bUJMTAuYu10/Zg6dV15nble9ul7WqIz1ZSYCSKGzowJbvXB7irbSp6AkyE2Pl40ziMkmVO1aJ1jNrOyMqktysSN/dVW5EK1JtRnapsWFKkav+LFIw/wDMD5pegmJIGUAspAYXUkWuPEU2pq1x0RZ4Y22+zjLb+KC58rKo+FVAalJStQp/D5VK6hlQkHkaFSSXFNsKdemzS5mn4Ny5RqxEg2j9kHxtzq44YxDYzFNJIT2Q2Vem1VmBw7y4IRwqSzGxt623rS5Nh0wrQwftsCW+F/xrbUYLjiFFxkixiyi3Lx5ms/pq94zS2Ml9fyqjrIvtp+LHtBhlAsum/qbVlSK6Bk+WLmOC7NWAxEPsg9R093SsVmOVywsVlRkI8QR8D1ppsQjSLUpjW64RyQJgMRiZFB1KyoCOgHMe+oSbYQmlx8qZ1U/BQihGSQALk8gNzQNajg/D6FmxjC4gXuX5dow2+H51mZpCxLHmSSfUm5qJu9Hemw29LoJZNS8Jgy6SNfaMA2sTcs1rbcup38Khg1uOC8P+jyIQL4sToL+EMVxb7z/KpqRRcOzBZ1DexJeKT+SUaCfcSD92peTxdhiGEhClFxCEnlr7KSMD3sbe+qOM1eZ9Lqm7Qcpkjl97oNf/AJBqy9JDuEySRcNJiSLRFGiViR33ZgulRzJA1H7tZ7EYY9BVmMUxUKSSouQtzYE8yByFPotgpI2a5HuJU/MGjbXjtWZbkkk0ixoN2Nrnko6s3kBcn0pzOYTJOQiNbuxxIASxVAEQADcsQAdurGtTk2cxwsdSghgVIJI2Nr7jccq2f0d5xl0uNNkEeIjQmK7Fg97iQx6v2wOngxPQ1qemLj8cUzDI54XEcsMkbsLhHjdWI8VBFyPSnMrshaVgD2QBVTyMrG0YI8rFrfwWr1djsYhIYhbrex2uAbagCfGw28hWfxOBwjNIXSO77nuLv4E7b++vO8mvTow/j3Kb9OafRlwRJiFM2JZzA7iQQknTK67iWQHnz28fTn13MstjngeJlBRgUZehFuXlUVc2hjj+zICgbDYAADl5CjynN1eMMD7Xe/q3HytXjbb7dOPH4zqPOnF/CEmCnMZBZGP2T/vA3sP5hyP+NHiox20A6BXj/oZ0PzvXb+N8iXExKeToyyRsNiGU35+Y299cZx08rzwGf9Yol7QEBSCjPuwHWyjfrzr14899X25ebj8bueqo8NMz9o7G5WIi/uCD+1UWHCE+WzN7l51Iyz2ZR/AP7aVfYjsTI5bUVMPdKWAFjpkNjzu1z769Hik5LhiYEPaW2O1/M0KfyfKy0CMHQAjYMwBtcjcUK0mec03S3ps1OZb5HxTLhL9nYg9D+VFBxHIcWmIkNyGF/C3UCqg0Rq2W44/yQyacVENSso123t51gjWhybi6XDqU9tD+y3T0qlxLGRywXmb2ApposFj3hcPExVhyIrWYv6TGnwzQ4mFXYiwkGxv4kVmYsincd2JyPHSalLwXizyhPvsPjUu1CTvW2gzubFoIYYmESRFLKLjXbmTUBPo3xjfsAX8/nU2DAZlgsPIqDTGd2IsSPEg9KVJWSzPKJMOQsoAYi9r3I9aYhakTzMxuxJPiTc0qOspr82l7LLcPEuxmLSv5i/dqlXIncQ6e802sqvgqG1z5c6s+KV7mF327BbeW+9XazxwZauJBHaNEcPEt+8HLN2jW99aaYKfDNE7I4sy8xU/ITYTyEA6IWAv0aQiMEefeNDOFLxwSnnImknxMZ0/hatLwzxaIsEyTwRzRoyRhSoDWfU5JPWxFCjFqK6pk/DOIWTByhAMPDAC7FgCTKrNKQp35sB7q5/glTE49AiBI5JQdHMKgOoj4A1Pw2dPLjw+ptLTghdRtpMlgAL2G1qGoq8RHpdh4Mw+BIq0x+8OGP/TdP6JXtf3MKj8QxacXOvhI/wAzf86fxX+74fx+2P8A9lvyNYekRV8PGpObv2YgUggiK5B2N3lkbkfIioLyW3GxHKrjijiuaRRBIVkUxYch3UNIGaJHYiQ7gkk3pkW1dHk+Jn/VxORt3iNKb8u81h1HxqdkMAy3FxYiaeIsh3iU6zZwY2udrWDE9eVVeGlxOKtCsrFVS1i2lFjSw3tzAuPGqbN8s7CQprV9gdS30m/gTzp10Je9vSOT4pMQzEtt0F+h3HupziHJxNGUjYxuB3JBYkHzB5jyrlX0TcSsZDA55L3D10jp7vzrsXMXFcVmrZX1sc/LWUclxeRTXEU83fPNQSdQ5agLAaf9K1/CmWGHuNOzWtYaVBA8L70/xPk8krxNCVDqxHf2GliCdwCeajbzqfgspAe7Sgta1kFreJ3PP1Fefdrq85cdVdyxgrbp8fnWE464XSSGSZVAnjjcK37y2N1bx2vY9L1u44lUW326k3NZfjPHhMPIf4W/A1q3xu45NTKXG+nB8qsWZf3kce/SSPmBTUWIIBHiun0BIP5Uym1GK+hp8o4GoUkUVWksnNCGQBgSLgHceNJemyanM6Bgs7y6RAJIwpA3uB/k0FxWVarlfkbVz+9FenbW3RTxFliezDf7tVmN45iF+wgUeoFYykmra22sn0qTBQEjRbVX4j6RsW3JlHoKy5FP4PL3lbTGpY+VW1urNuO8ZvaUja3IUg8c4soyNJqVxYggcqr80yeWBgJUK33HgagGra3SGpSNQtSCbUH21fEDg4XBPe/2boR4aWrNs29S8RnevDQw2N4mc36ENyqHGL/53pNi+x5/QcKOuqe3oStVUeJYRsn7JIY+ouB+NXXFMHZLh4OscQZx4PIdRv58qoW5UI7l2NaGTtEPeAIH3lKn5GlYSfQ6ta+lla3jpN7fKoiGnUNDUWGNxxlleVtjIxYjwueVWOaOBHh18IdR9Xlkf8CtZ7XvVvnRtKV/5axx+9I1U/MGstxEmkqC01+Z8PhyFOztUMitQU4X3AJsCQCfInepPEJBk1JpMRCrFp3GhAECm+4ba5v1N+t6rdybDmelS8zwpiCRt7YBdx+6XtZD56VUn+a3SlQ7wxjTDio3HQ7+h2Ir0rlmJBQE+FeVlYjlXd+Cc91wJf8AdG/Mcvl6Vzcs1ZXd/Hu5cWxxstyLdDUtU1gMTv8AOoKMDUuCW1eE9uq+i8SlhzrnH0k4q2HceO3xNq32LxNxXMPpIf7E+o/EUXvKT9juYZX9OZKKGmjBoga+i+UO1ChehSExzTRNKc0jVU5h3oXpN6IGpLfIsgfEyADZf2ntsBWoweKw0EqwQw9swNmc2PrvWWwXEEsUTRobBvLffzrScP4b6ph2xEguz30jmaY3FJxjAv1tggAvp2HIE1OzHGfU4Eih2kcancc9+grOYnEl5GkPMkmtTg+MMOI1MmHDyoLAm1tutCM4rtZMuJxAOpGBjZvaIPSsYVre8YZmZ8FC7KFLsTYcgOgrDMKqqYtSHW9PlaQVoRkLWq4MyZGLYqdgkGHIO/N5BuqAdelZoigXOnTc6b3tc2v428amk7Os4bEzvK37R28hyA+FRNdMhaWFo2i0pzV0pk7UcYo21IfwjAOpIuAQSPEA3Ip7FYku7OebMzH7xJ/OmVW1EaGiJmphm2pcppmtM1YZNnf1cOVjVpCV0SNv2dr3IHjvVbNKWYsxuSSST1J5mnmww7LWTvrCKLc7Lqc38rp/VUWpoK3H0e8Q9mTEx81/MVh6ewkhVgwOkje9Zyx3NPTjy8ctvReX5mGFWfbbVyrhHikPZXsGHhaugQY0EbVx3p9KdzcT5ZdqxnGeXGSGQDnY29RuPmK1o3qJjMJcV5Zbl29JJZpwLDR6mA5Dck+CgXJ+FIZgSbbDp6Vt874ClXtZMONQe/c2B3N20+I8qxBjKkqwKsOYIsQfAg8q+jhyY5zqvlcnHlhdWJMSREDU7A9QFuPjehTmE7LQNTgHe4sT1oV6PM3I1JJopDSNVTlKvRg02TRaqkkB60cfHEnYrEUUhdrmssDS9XSpqNNiY0xOHeVVCNHztyNZsNWjxCfV8AFYWec3t4L/AKVmVNVLc8XxgYDC2Frc/A7Vh623GrH6nhedrfO1YiimiIoWo6FqEGkW86b0U4BRgUNGwlK00q1EaiQRQ1URNNO1BP8AaUZencuyqSb9XpJJ0hS6K7G17KpNzzqK4IJB5gkH3bU6WyHamiaU1IJpCbjjaGBfESOfVpCn4RrUXD4YuwHK4JueVlBJPyPwqZmW8eHP/SYe8SyX/GrDLIy2CmuBddQhJ52srYhV+7pPlqbxpaU0f6p9v2o9/c9R7bVf4XNo4cPeKIdoWUM8mmQalU3KKRZfa9d6qvrAOp3N5C1wLAAk3uxt4eHnQisBjDG48uddf4UzRJFG9zXE6tsjz18O11O3Uf3V48mG+46eHl8eq9CpGTyqTFhb+1WK4c4yEqjf3Vr8Nj71zWT67Zb8THw4tWb4g4OgxI76DV0cbMPf+R2rRdtejUAkDoef51nx76VvXapyj6OsEsKB8NCzAbsyBmPgWY8zahWkMlFXT5ODUeWXNIJpT03XU+eO9FehehUSwa1/CHDSm+IxPdjTvAHbURVVwxPh0YvPuV3UdDR8RcUviTYd2MclG3xpMMcR5x9YnZh7I2QeCiqxGpBFAVlNLxHxMMRDCguOzFredrXrPg1Oyzh2bEKzxpdU5t09BUFlKkg8xtURg0BSRShQ0UKF6FqKoiJpJNGaTahEE1bZABIk2HPOVdcflLDdh8V1j31Jy3hSXEYZpYkLFXIbcAaQgawB3LXPyqtyvEmGaOQc0dW/pO4+F6SPJ/s1kn6xjSn/AHZbqnwUO33RVcTWixeHiSebDSsYozIHSUAvoNjp1KDdlIfpuPlVLmeFWOQqkiyqLWkQEKbi+wbfyqCGaTR0KinYg3wsR/ceVD6MEdf/AHoYTM941Oyosq+vahgxPqGA9wqMMWezaO2xZXv4FQy/PV8qscp4SxGI3C6E/fe6j7o5t7hS0qjN3AtuTFr+oAt8qlZfkU0+8cZI/eOy/wBR2q+kwmEwftHt5R05gH+XkPvXNQcfxlM40paNfBedvXp7qtJWz4ARsVkbcdF3+dJEw3CJfY78z61GdiTckknmTzpcRIvz5f6X8t6zo7P5dmTxNdTXTuG+LO0UXO9clqzyjM+zYXNvP++vLkw33HRw8vjdV3rCZhqq7y1rgt7h+Zrm2RZvqAHWumYRdKKPAD49a58J26OXLrpMFCm9YoV6ud5dIpujoV1vmkGlUKFRKApNChUC+lFahQoaargrMJBMsQciM3JXoaos0H20n8zfjR0KfjXxFtQFChWUXQtQoUki1FahQoLRwYlo4cGUYr9rMdj11xr+G1UOYD7ST+Z/7RoUKUmcXf7y38sf9gVRtRUKh9EKS1ChQ1HR+BsmhOH7UxqX1AamGr4A7CqnjzNZVkCLIwVluQDa5v1POhQrXwsYTRihQrJScPGDHKSNwEt5XcA0yJCpBBINuYoUKkbJoqFCpNv9GMhbFxKTcaxt6C/413STnR0K8MvronqDUbUdChSH/9k=" style="height: 171px; margin-left: -11px; margin-top: 0px; width: 227px;"><span style="font-size: 16.0pt;"></span></h2> <div class="MsoNormal" style="tab-stops: list 36.0pt; text-align: justify; text-justify: inter-cluster;"> <span lang="TH" style="font-family: "Angsana New","serif"; font-size: 16.0pt;">โจทย์ประเภทนี้จะมีข้อความที่ไม่ทราบค่าปรากฏอยู่<span style="mso-spacerun: yes;">  </span>และข้อความที่เกี่ยวข้องกับข้อความอื่น<span style="mso-spacerun: yes;">  </span>ๆ<span style="mso-spacerun: yes;">  </span>อีกหลายข้อความในโจทย์นั้น<span style="mso-spacerun: yes;">  </span>ซึ่งอาจมีความสัมพันธ์กับข้อความนั้น<span style="mso-spacerun: yes;">  </span>ๆ<span style="mso-spacerun: yes;">  </span>โดยตรงหรือโดยอ้อม<span style="mso-spacerun: yes;">  </span>การแก้ปัญหาเกี่ยวกับโจทย์สมการก็คือการหาคำตอบของโจทย์นั่นเอง<span style="mso-spacerun: yes;">  </span>โดยวิธีการกำหนดตัวแปรแทนข้อความที่ไม่ทราบค่านั้น<span style="mso-spacerun: yes;">  </span></span><span style="font-family: "Angsana New","serif"; font-size: 16.0pt;">(<span lang="TH">นิยมใช้<span style="mso-spacerun: yes;">  </span></span>x <span lang="TH"><span style="mso-spacerun: yes;"> </span>เป็นตัวแปร</span>)<span style="mso-spacerun: yes;">  </span><span lang="TH">แล้วเขียนข้อความอื่น<span style="mso-spacerun: yes;">  </span>ๆ<span style="mso-spacerun: yes;">  </span>ในรูปของ<span style="mso-spacerun: yes;">  </span></span>x<span lang="TH"><span style="mso-spacerun: yes;">  </span>นี้<span style="mso-spacerun: yes;">  </span>สร้างสมการขึ้นมา</span></span></div> <div class="MsoNormal" style="tab-stops: list 36.0pt; text-align: justify; text-justify: inter-cluster;"> <span style="font-family: "Angsana New","serif"; font-size: 16.0pt;"><span lang="TH"></span></span></div>

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