-5a+18+2a=7a-4a

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Solution for -5a+18+2a=7a-4a equation: 



-5a+18+2a=7a-4a

We move all terms to the left:

-5a+18+2a-(7a-4a)=0

We add all the numbers together, and all the variables

-5a+2a-(+3a)+18=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3a-3a+18=0

We add all the numbers together, and all the variables

-6a+18=0

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

-6a=-18

a=-18/-6

a=+3

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