13-x=-4(8-x)

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Solution for 13-x=-4(8-x) equation: 



13-x=-4(8-x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-x-(-4(-1x+8))+13=0

We add all the numbers together, and all the variables

-1x-(-4(-1x+8))+13=0



We calculate terms in parentheses: -(-4(-1x+8)), so:

-4(-1x+8)

We multiply parentheses

4x-32

Back to the equation:

-(4x-32)



We get rid of parentheses

-1x-4x+32+13=0

We add all the numbers together, and all the variables

-5x+45=0

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

-5x=-45

x=-45/-5

x=+9

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