-3x-4(3x+15)=75

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Solution for -3x-4(3x+15)=75 equation: 



-3x-4(3x+15)=75

We move all terms to the left:

-3x-4(3x+15)-(75)=0

We multiply parentheses

-3x-12x-60-75=0

We add all the numbers together, and all the variables

-15x-135=0

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

-15x=135

x=135/-15

x=-9

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