20=x-100

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Solution for 20=x-100 equation:



20=x-100
We move all terms to the left:
20-(x-100)=0
We get rid of parentheses
-x+100+20=0
We add all the numbers together, and all the variables
-1x+120=0
We move all terms containing x to the left, all other terms to the right
-x=-120
x=-120/-1
x=+120

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