100=-4(3x-7)

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Solution for 100=-4(3x-7) equation: 



100=-4(3x-7)

We move all terms to the left:

100-(-4(3x-7))=0



We calculate terms in parentheses: -(-4(3x-7)), so:

-4(3x-7)

We multiply parentheses

-12x+28

Back to the equation:

-(-12x+28)



We get rid of parentheses

12x-28+100=0

We add all the numbers together, and all the variables

12x+72=0

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

12x=-72

x=-72/12

x=-6

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