7(a+9)=-(-9a-9)+8

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Solution for 7(a+9)=-(-9a-9)+8 equation: 



7(a+9)=-(-9a-9)+8

We move all terms to the left:

7(a+9)-(-(-9a-9)+8)=0

We multiply parentheses

7a-(-(-9a-9)+8)+63=0



We calculate terms in parentheses: -(-(-9a-9)+8), so:

-(-9a-9)+8

We get rid of parentheses

9a+9+8

We add all the numbers together, and all the variables

9a+17

Back to the equation:

-(9a+17)



We get rid of parentheses

7a-9a-17+63=0

We add all the numbers together, and all the variables

-2a+46=0

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

-2a=-46

a=-46/-2

a=+23

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