7a-2(a+1)+18=8a-11

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Solution for 7a-2(a+1)+18=8a-11 equation: 



7a-2(a+1)+18=8a-11

We move all terms to the left:

7a-2(a+1)+18-(8a-11)=0

We multiply parentheses

7a-2a-(8a-11)-2+18=0

We get rid of parentheses

7a-2a-8a+11-2+18=0

We add all the numbers together, and all the variables

-3a+27=0

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

-3a=-27

a=-27/-3

a=+9

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