a+15=7a

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Solution for a+15=7a equation: 



a+15=7a

We move all terms to the left:

a+15-(7a)=0

We add all the numbers together, and all the variables

-6a+15=0

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

-6a=-15

a=-15/-6

a=2+1/2

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