9-11(-7x-4)=9(10x+8)+7

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Solution for 9-11(-7x-4)=9(10x+8)+7 equation: 



9-11(-7x-4)=9(10x+8)+7

We move all terms to the left:

9-11(-7x-4)-(9(10x+8)+7)=0

We multiply parentheses

77x-(9(10x+8)+7)+44+9=0



We calculate terms in parentheses: -(9(10x+8)+7), so:

9(10x+8)+7

We multiply parentheses

90x+72+7

We add all the numbers together, and all the variables

90x+79

Back to the equation:

-(90x+79)



We add all the numbers together, and all the variables

77x-(90x+79)+53=0

We get rid of parentheses

77x-90x-79+53=0

We add all the numbers together, and all the variables

-13x-26=0

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

-13x=26

x=26/-13

x=-2

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