5(x-3)+12 = -2(x+7)

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5(x-3)+12 = -2(x+7)

I dont know what to do, please help.

Guest Oct 28, 2014

+130511

+5

Best Answer

5(x-3)+12 = -2(x+7) distribute the 5 and -2 over the terms in the parentheses

5x - 15 +12 = -2x - 14 simplify

5x - 3 = -2x -14 add 3 to both sides and add 2x to both sides

7x = -11 divide both sides by 7

x = -11/7

CPhill Oct 28, 2014

CPhill · Answer 1 · 2014-10-28T12:42:55

5(x-3)+12 = -2(x+7) distribute the 5 and -2 over the terms in the parentheses

5x - 15 +12 = -2x - 14 simplify

5x - 3 = -2x -14 add 3 to both sides and add 2x to both sides

7x = -11 divide both sides by 7

x = -11/7

Guest · Answer 2 · 2014-10-28T12:13:47

distributive property then common like numbers