120=4x-5(7x+7)

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Solution for 120=4x-5(7x+7) equation: 



120=4x-5(7x+7)

We move all terms to the left:

120-(4x-5(7x+7))=0



We calculate terms in parentheses: -(4x-5(7x+7)), so:

4x-5(7x+7)

We multiply parentheses

4x-35x-35

We add all the numbers together, and all the variables

-31x-35

Back to the equation:

-(-31x-35)



We get rid of parentheses

31x+35+120=0

We add all the numbers together, and all the variables

31x+155=0

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

31x=-155

x=-155/31

x=-5

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