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How and why does this equation -8-x=-3x equal x=4
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How and why does this equation -8-x=-3x equal x=4

User Kdgregory
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2 Answers

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- 8 - x = - 3x \\ - 8 = - 3x + x \\ - 8 = - 2x \\ x = - ( - 8)/( - 2) = 4
First, we add x to both sides and simplify. Then, we divide both sides by -2
User Bhish
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because -8-(4)= -12, and -3(4) = -12
User Davidweitzenfeld
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