-9=7(1-7x)-4(4-8x)

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Solution for -9=7(1-7x)-4(4-8x) equation: 



-9=7(1-7x)-4(4-8x)

We move all terms to the left:

-9-(7(1-7x)-4(4-8x))=0

We add all the numbers together, and all the variables

-(7(-7x+1)-4(-8x+4))-9=0



We calculate terms in parentheses: -(7(-7x+1)-4(-8x+4)), so:

7(-7x+1)-4(-8x+4)

We multiply parentheses

-49x+32x+7-16

We add all the numbers together, and all the variables

-17x-9

Back to the equation:

-(-17x-9)



We get rid of parentheses

17x+9-9=0

We add all the numbers together, and all the variables

17x=0

x=0/17

x=0

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