-9+4x=-7(7-3x)

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Solution for -9+4x=-7(7-3x) equation: 



-9+4x=-7(7-3x)

We move all terms to the left:

-9+4x-(-7(7-3x))=0

We add all the numbers together, and all the variables

4x-(-7(-3x+7))-9=0



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

-7(-3x+7)

We multiply parentheses

21x-49

Back to the equation:

-(21x-49)



We get rid of parentheses

4x-21x+49-9=0

We add all the numbers together, and all the variables

-17x+40=0

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

-17x=-40

x=-40/-17

x=2+6/17

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