-15+8a=20

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Solution for -15+8a=20 equation: 



-15+8a=20

We move all terms to the left:

-15+8a-(20)=0

We add all the numbers together, and all the variables

8a-35=0

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

8a=35

a=35/8

a=4+3/8

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