2x-21=31

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Solution for 2x-21=31 equation: 



2x-21=31

We move all terms to the left:

2x-21-(31)=0

We add all the numbers together, and all the variables

2x-52=0

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

2x=52

x=52/2

x=26

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