8(x+9)=-(x-9)

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Solution for 8(x+9)=-(x-9) equation: 



8(x+9)=-(x-9)

We move all terms to the left:

8(x+9)-(-(x-9))=0

We multiply parentheses

8x-(-(x-9))+72=0



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

-(x-9)

We get rid of parentheses

-x+9

We add all the numbers together, and all the variables

-1x+9

Back to the equation:

-(-1x+9)



We get rid of parentheses

8x+1x-9+72=0

We add all the numbers together, and all the variables

9x+63=0

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

9x=-63

x=-63/9

x=-7

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