-3a+18+8a=5a-9a

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Solution for -3a+18+8a=5a-9a equation: 



-3a+18+8a=5a-9a

We move all terms to the left:

-3a+18+8a-(5a-9a)=0

We add all the numbers together, and all the variables

-3a+8a-(-4a)+18=0

We add all the numbers together, and all the variables

5a-(-4a)+18=0

We get rid of parentheses

5a+4a+18=0

We add all the numbers together, and all the variables

9a+18=0

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

9a=-18

a=-18/9

a=-2

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