31=2(x+8)-7x

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Solution for 31=2(x+8)-7x equation: 



31=2(x+8)-7x

We move all terms to the left:

31-(2(x+8)-7x)=0



We calculate terms in parentheses: -(2(x+8)-7x), so:

2(x+8)-7x

We add all the numbers together, and all the variables

-7x+2(x+8)

We multiply parentheses

-7x+2x+16

We add all the numbers together, and all the variables

-5x+16

Back to the equation:

-(-5x+16)



We get rid of parentheses

5x-16+31=0

We add all the numbers together, and all the variables

5x+15=0

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

5x=-15

x=-15/5

x=-3

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