3x+7-x=-2x-1

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Solution for 3x+7-x=-2x-1 equation: 



3x+7-x=-2x-1

We move all terms to the left:

3x+7-x-(-2x-1)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

2x+2x+1+7=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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