121=4x-7(-4+5x)

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Solution for 121=4x-7(-4+5x) equation: 



121=4x-7(-4+5x)

We move all terms to the left:

121-(4x-7(-4+5x))=0

We add all the numbers together, and all the variables

-(4x-7(5x-4))+121=0



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

4x-7(5x-4)

We multiply parentheses

4x-35x+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+121=0

We add all the numbers together, and all the variables

31x+93=0

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

31x=-93

x=-93/31

x=-3

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