-7x-7(3x+13)=-231

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Solution for -7x-7(3x+13)=-231 equation: 



-7x-7(3x+13)=-231

We move all terms to the left:

-7x-7(3x+13)-(-231)=0

We add all the numbers together, and all the variables

-7x-7(3x+13)+231=0

We multiply parentheses

-7x-21x-91+231=0

We add all the numbers together, and all the variables

-28x+140=0

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

-28x=-140

x=-140/-28

x=+5

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