-3x-4(-3x-9)=-72

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Solution for -3x-4(-3x-9)=-72 equation: 



-3x-4(-3x-9)=-72

We move all terms to the left:

-3x-4(-3x-9)-(-72)=0

We add all the numbers together, and all the variables

-3x-4(-3x-9)+72=0

We multiply parentheses

-3x+12x+36+72=0

We add all the numbers together, and all the variables

9x+108=0

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

9x=-108

x=-108/9

x=-12

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