12-7x=-4(7x+4)-4(-5-5x)

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Solution for 12-7x=-4(7x+4)-4(-5-5x) equation: 



12-7x=-4(7x+4)-4(-5-5x)

We move all terms to the left:

12-7x-(-4(7x+4)-4(-5-5x))=0

We add all the numbers together, and all the variables

-7x-(-4(7x+4)-4(-5x-5))+12=0



We calculate terms in parentheses: -(-4(7x+4)-4(-5x-5)), so:

-4(7x+4)-4(-5x-5)

We multiply parentheses

-28x+20x-16+20

We add all the numbers together, and all the variables

-8x+4

Back to the equation:

-(-8x+4)



We get rid of parentheses

-7x+8x-4+12=0

We add all the numbers together, and all the variables

x+8=0

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

x=-8

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