121=-4x-3(5-7x)

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Solution for 121=-4x-3(5-7x) equation: 



121=-4x-3(5-7x)

We move all terms to the left:

121-(-4x-3(5-7x))=0

We add all the numbers together, and all the variables

-(-4x-3(-7x+5))+121=0



We calculate terms in parentheses: -(-4x-3(-7x+5)), so:

-4x-3(-7x+5)

We multiply parentheses

-4x+21x-15

We add all the numbers together, and all the variables

17x-15

Back to the equation:

-(17x-15)



We get rid of parentheses

-17x+15+121=0

We add all the numbers together, and all the variables

-17x+136=0

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

-17x=-136

x=-136/-17

x=+8

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