8a-3a-15=13

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Solution for 8a-3a-15=13 equation: 



8a-3a-15=13

We move all terms to the left:

8a-3a-15-(13)=0

We add all the numbers together, and all the variables

5a-28=0

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

5a=28

a=28/5

a=5+3/5

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