3(-5x-7)=-66

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Solution for 3(-5x-7)=-66 equation: 



3(-5x-7)=-66

We move all terms to the left:

3(-5x-7)-(-66)=0

We add all the numbers together, and all the variables

3(-5x-7)+66=0

We multiply parentheses

-15x-21+66=0

We add all the numbers together, and all the variables

-15x+45=0

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

-15x=-45

x=-45/-15

x=+3

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