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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

21x-(4(x+9))-49=0



We calculate terms in parentheses: -(4(x+9)), so:

4(x+9)

We multiply parentheses

4x+36

Back to the equation:

-(4x+36)



We get rid of parentheses

21x-4x-36-49=0

We add all the numbers together, and all the variables

17x-85=0

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

17x=85

x=85/17

x=5

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