Question

solve 12a+3=15/2-a and verify ​

Answer 1

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✸ Solving both sides

➦ $12a + 3 = \dfrac {15}{2} - a$

➦ $12a + a = \dfrac {15}{2} - 3$

➦ $13a = \dfrac {15-6}{2}$

➦ $13a = \dfrac {9}{2}$

➦ $a = \dfrac {9}{2} × 13$

➦ $a = \dfrac {117}{2}$

➦ $a = 58.5$

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