2a-15=81

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Solution for 2a-15=81 equation: 



2a-15=81

We move all terms to the left:

2a-15-(81)=0

We add all the numbers together, and all the variables

2a-96=0

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

2a=96

a=96/2

a=48

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