a-15=4a-2

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Solution for a-15=4a-2 equation: 



a-15=4a-2

We move all terms to the left:

a-15-(4a-2)=0

We get rid of parentheses

a-4a+2-15=0

We add all the numbers together, and all the variables

-3a-13=0

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

-3a=13

a=13/-3

a=-4+1/3

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