2a+5=81

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Solution for 2a+5=81 equation: 



2a+5=81

We move all terms to the left:

2a+5-(81)=0

We add all the numbers together, and all the variables

2a-76=0

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

2a=76

a=76/2

a=38

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