3x+6(-4x-9)=12

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Solution for 3x+6(-4x-9)=12 equation: 



3x+6(-4x-9)=12

We move all terms to the left:

3x+6(-4x-9)-(12)=0

We multiply parentheses

3x-24x-54-12=0

We add all the numbers together, and all the variables

-21x-66=0

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

-21x=66

x=66/-21

x=-3+1/7

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