-18+2a=3(a-3)+2a

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Solution for -18+2a=3(a-3)+2a equation: 



-18+2a=3(a-3)+2a

We move all terms to the left:

-18+2a-(3(a-3)+2a)=0



We calculate terms in parentheses: -(3(a-3)+2a), so:

3(a-3)+2a

We add all the numbers together, and all the variables

2a+3(a-3)

We multiply parentheses

2a+3a-9

We add all the numbers together, and all the variables

5a-9

Back to the equation:

-(5a-9)



We get rid of parentheses

2a-5a+9-18=0

We add all the numbers together, and all the variables

-3a-9=0

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

-3a=9

a=9/-3

a=-3

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