-3a+5a=15

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Solution for -3a+5a=15 equation: 



-3a+5a=15

We move all terms to the left:

-3a+5a-(15)=0

We add all the numbers together, and all the variables

2a-15=0

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

2a=15

a=15/2

a=7+1/2

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