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8-3X=5X+1
12a-5=9a-2
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1 Answer
You have an unknown variable, a, that you are looking to solve for. To do so, you need to isolate all terms with the variable a to one side of the equation and move all other terms to the other side of the equation. Then combine all like terms and solve for a:
12a - 5 = 9a - 2 »»» 12a - 5 - 9a + 5 = 9a - 2 - 9a + 5
»»» 12a - 9a = - 2 + 5 »»» 3a = 3
»»» (3a)/3 = (3)/3 »»» a = 1
