-3x+12-9x+8=-3(-4x+7)

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Solution for -3x+12-9x+8=-3(-4x+7) equation: 



-3x+12-9x+8=-3(-4x+7)

We move all terms to the left:

-3x+12-9x+8-(-3(-4x+7))=0

We add all the numbers together, and all the variables

-12x-(-3(-4x+7))+20=0



We calculate terms in parentheses: -(-3(-4x+7)), so:

-3(-4x+7)

We multiply parentheses

12x-21

Back to the equation:

-(12x-21)



We get rid of parentheses

-12x-12x+21+20=0

We add all the numbers together, and all the variables

-24x+41=0

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

-24x=-41

x=-41/-24

x=1+17/24

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