x+x+1=-2x-7

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Solution for x+x+1=-2x-7 equation: 



x+x+1=-2x-7

We move all terms to the left:

x+x+1-(-2x-7)=0

We add all the numbers together, and all the variables

2x-(-2x-7)+1=0

We get rid of parentheses

2x+2x+7+1=0

We add all the numbers together, and all the variables

4x+8=0

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

4x=-8

x=-8/4

x=-2

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