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

-6x-(-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

-6x+12x+21+20=0

We add all the numbers together, and all the variables

6x+41=0

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

6x=-41

x=-41/6

x=-6+5/6

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