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61/2=2x+21/2
We move all terms to the left:
61/2-(2x+21/2)=0
We add all the numbers together, and all the variables
-(+2x+21/2)+61/2=0
We get rid of parentheses
-2x-21/2+61/2=0
We multiply all the terms by the denominator
-2x*2-21+61=0
We add all the numbers together, and all the variables
-2x*2+40=0
Wy multiply elements
-4x+40=0
We move all terms containing x to the left, all other terms to the right
-4x=-40
x=-40/-4
x=+10
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