5a+15=8a+18

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Solution for 5a+15=8a+18 equation: 



5a+15=8a+18

We move all terms to the left:

5a+15-(8a+18)=0

We get rid of parentheses

5a-8a-18+15=0

We add all the numbers together, and all the variables

-3a-3=0

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

-3a=3

a=3/-3

a=-1

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