-121=-7(7+2x)+5x

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Solution for -121=-7(7+2x)+5x equation: 



-121=-7(7+2x)+5x

We move all terms to the left:

-121-(-7(7+2x)+5x)=0

We add all the numbers together, and all the variables

-(-7(2x+7)+5x)-121=0



We calculate terms in parentheses: -(-7(2x+7)+5x), so:

-7(2x+7)+5x

We add all the numbers together, and all the variables

5x-7(2x+7)

We multiply parentheses

5x-14x-49

We add all the numbers together, and all the variables

-9x-49

Back to the equation:

-(-9x-49)



We get rid of parentheses

9x+49-121=0

We add all the numbers together, and all the variables

9x-72=0

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

9x=72

x=72/9

x=8

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