-3a-15=10a+18-2a

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Solution for -3a-15=10a+18-2a equation: 



-3a-15=10a+18-2a

We move all terms to the left:

-3a-15-(10a+18-2a)=0

We add all the numbers together, and all the variables

-3a-(8a+18)-15=0

We get rid of parentheses

-3a-8a-18-15=0

We add all the numbers together, and all the variables

-11a-33=0

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

-11a=33

a=33/-11

a=-3

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