2x+15=x+8=-7

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Solution for 2x+15=x+8=-7 equation: 



2x+15=x+8=-7

We move all terms to the left:

2x+15-(x+8)=0

We get rid of parentheses

2x-x-8+15=0

We add all the numbers together, and all the variables

x+7=0

We move all terms containing x to the left, all other terms to the right

x=-7

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