3(-5x-7)=-81

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Solution for 3(-5x-7)=-81 equation: 



3(-5x-7)=-81

We move all terms to the left:

3(-5x-7)-(-81)=0

We add all the numbers together, and all the variables

3(-5x-7)+81=0

We multiply parentheses

-15x-21+81=0

We add all the numbers together, and all the variables

-15x+60=0

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

-15x=-60

x=-60/-15

x=+4

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