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50=0.21x
We move all terms to the left:
50-(0.21x)=0
We add all the numbers together, and all the variables
-(+0.21x)+50=0
We get rid of parentheses
-0.21x+50=0
We move all terms containing x to the left, all other terms to the right
-0.21x=-50
x=-50/-0.21
x=238+0.02/0.21
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