8.5a+13=115

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Solution for 8.5a+13=115 equation: 



8.5a+13=115

We move all terms to the left:

8.5a+13-(115)=0

We add all the numbers together, and all the variables

8.5a-102=0

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

8.5a=102

a=102/8.5

a=12

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