12=4(x-7)-8x

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



12=4(x-7)-8x

We move all terms to the left:

12-(4(x-7)-8x)=0



We calculate terms in parentheses: -(4(x-7)-8x), so:

4(x-7)-8x

We add all the numbers together, and all the variables

-8x+4(x-7)

We multiply parentheses

-8x+4x-28

We add all the numbers together, and all the variables

-4x-28

Back to the equation:

-(-4x-28)



We get rid of parentheses

4x+28+12=0

We add all the numbers together, and all the variables

4x+40=0

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

4x=-40

x=-40/4

x=-10

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