2x+51=81

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Solution for 2x+51=81 equation: 



2x+51=81

We move all terms to the left:

2x+51-(81)=0

We add all the numbers together, and all the variables

2x-30=0

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

2x=30

x=30/2

x=15

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