-12=4(-2x+-9)

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Solution for -12=4(-2x+-9) equation: 



-12=4(-2x+-9)

We move all terms to the left:

-12-(4(-2x+-9))=0

We add all the numbers together, and all the variables

-(4(-2x-9))-12=0



We calculate terms in parentheses: -(4(-2x-9)), so:

4(-2x-9)

We multiply parentheses

-8x-36

Back to the equation:

-(-8x-36)



We get rid of parentheses

8x+36-12=0

We add all the numbers together, and all the variables

8x+24=0

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

8x=-24

x=-24/8

x=-3

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