3(-x-20)=15

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Solution for 3(-x-20)=15 equation: 



3(-x-20)=15

We move all terms to the left:

3(-x-20)-(15)=0

We add all the numbers together, and all the variables

3(-1x-20)-15=0

We multiply parentheses

-3x-60-15=0

We add all the numbers together, and all the variables

-3x-75=0

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

-3x=75

x=75/-3

x=-25

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