-3(-3-5n)=129

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Solution for -3(-3-5n)=129 equation: 



-3(-3-5n)=129

We move all terms to the left:

-3(-3-5n)-(129)=0

We add all the numbers together, and all the variables

-3(-5n-3)-129=0

We multiply parentheses

15n+9-129=0

We add all the numbers together, and all the variables

15n-120=0

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

15n=120

n=120/15

n=8

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