3x+x+8=-13+7x

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Solution for 3x+x+8=-13+7x equation: 



3x+x+8=-13+7x

We move all terms to the left:

3x+x+8-(-13+7x)=0

We add all the numbers together, and all the variables

3x+x-(7x-13)+8=0

We add all the numbers together, and all the variables

4x-(7x-13)+8=0

We get rid of parentheses

4x-7x+13+8=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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