-x+20=43

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Solution for -x+20=43 equation: 



-x+20=43

We move all terms to the left:

-x+20-(43)=0

We add all the numbers together, and all the variables

-1x-23=0

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

-x=23

x=23/-1

x=-23

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