a-15=4a+3+4a

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Solution for a-15=4a+3+4a equation: 



a-15=4a+3+4a

We move all terms to the left:

a-15-(4a+3+4a)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

a-8a-3-15=0

We add all the numbers together, and all the variables

-7a-18=0

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

-7a=18

a=18/-7

a=-2+4/7

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