55-5x=4(7-x)

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Solution for 55-5x=4(7-x) equation: 



55-5x=4(7-x)

We move all terms to the left:

55-5x-(4(7-x))=0

We add all the numbers together, and all the variables

-5x-(4(-1x+7))+55=0



We calculate terms in parentheses: -(4(-1x+7)), so:

4(-1x+7)

We multiply parentheses

-4x+28

Back to the equation:

-(-4x+28)



We get rid of parentheses

-5x+4x-28+55=0

We add all the numbers together, and all the variables

-1x+27=0

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

-x=-27

x=-27/-1

x=+27

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