x-7=12+2

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Solution for x-7=12+2 equation: 



x-7=12+2

We move all terms to the left:

x-7-(12+2)=0

We add all the numbers together, and all the variables

x-7-14=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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