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(22x-1)=21x
We move all terms to the left:
(22x-1)-(21x)=0
We add all the numbers together, and all the variables
-21x+(22x-1)=0
We get rid of parentheses
-21x+22x-1=0
We add all the numbers together, and all the variables
x-1=0
We move all terms containing x to the left, all other terms to the right
x=1
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