-220=4(7+8x)-x

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Solution for -220=4(7+8x)-x equation: 



-220=4(7+8x)-x

We move all terms to the left:

-220-(4(7+8x)-x)=0

We add all the numbers together, and all the variables

-(4(8x+7)-x)-220=0



We calculate terms in parentheses: -(4(8x+7)-x), so:

4(8x+7)-x

We add all the numbers together, and all the variables

-1x+4(8x+7)

We multiply parentheses

-1x+32x+28

We add all the numbers together, and all the variables

31x+28

Back to the equation:

-(31x+28)



We get rid of parentheses

-31x-28-220=0

We add all the numbers together, and all the variables

-31x-248=0

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

-31x=248

x=248/-31

x=-8

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