-5x+12-7x=-3(5x+7)

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Solution for -5x+12-7x=-3(5x+7) equation: 



-5x+12-7x=-3(5x+7)

We move all terms to the left:

-5x+12-7x-(-3(5x+7))=0

We add all the numbers together, and all the variables

-12x-(-3(5x+7))+12=0



We calculate terms in parentheses: -(-3(5x+7)), so:

-3(5x+7)

We multiply parentheses

-15x-21

Back to the equation:

-(-15x-21)



We get rid of parentheses

-12x+15x+21+12=0

We add all the numbers together, and all the variables

3x+33=0

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

3x=-33

x=-33/3

x=-11

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