-2a+8a=-15

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Solution for -2a+8a=-15 equation: 



-2a+8a=-15

We move all terms to the left:

-2a+8a-(-15)=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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