-7-7(7-3n)=-140

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Solution for -7-7(7-3n)=-140 equation: 



-7-7(7-3n)=-140

We move all terms to the left:

-7-7(7-3n)-(-140)=0

We add all the numbers together, and all the variables

-7(-3n+7)-7-(-140)=0

We add all the numbers together, and all the variables

-7(-3n+7)+133=0

We multiply parentheses

21n-49+133=0

We add all the numbers together, and all the variables

21n+84=0

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

21n=-84

n=-84/21

n=-4

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