-x+20=18

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Solution for -x+20=18 equation: 



-x+20=18

We move all terms to the left:

-x+20-(18)=0

We add all the numbers together, and all the variables

-1x+2=0

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

-x=-2

x=-2/-1

x=+2

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