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91=2x-1+x
We move all terms to the left:
91-(2x-1+x)=0
We add all the numbers together, and all the variables
-(3x-1)+91=0
We get rid of parentheses
-3x+1+91=0
We add all the numbers together, and all the variables
-3x+92=0
We move all terms containing x to the left, all other terms to the right
-3x=-92
x=-92/-3
x=30+2/3
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