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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-12x-(-3(4x+7)-3x+12-9x+8)+20=0



We calculate terms in parentheses: -(-3(4x+7)-3x+12-9x+8), so:

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

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-12x-12x-21+20

We add all the numbers together, and all the variables

-24x-1

Back to the equation:

-(-24x-1)



We get rid of parentheses

-12x+24x+1+20=0

We add all the numbers together, and all the variables

12x+21=0

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

12x=-21

x=-21/12

x=-1+3/4

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