x+12+20=2x+17

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Solution for x+12+20=2x+17 equation: 



x+12+20=2x+17

We move all terms to the left:

x+12+20-(2x+17)=0

We add all the numbers together, and all the variables

x-(2x+17)+32=0

We get rid of parentheses

x-2x-17+32=0

We add all the numbers together, and all the variables

-1x+15=0

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

-x=-15

x=-15/-1

x=+15

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