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20=x+11/2
We move all terms to the left:
20-(x+11/2)=0
We add all the numbers together, and all the variables
-(+x+11/2)+20=0
We get rid of parentheses
-x+20-11/2=0
We multiply all the terms by the denominator
-x*2-11+20*2=0
We add all the numbers together, and all the variables
-x*2+29=0
Wy multiply elements
-2x+29=0
We move all terms containing x to the left, all other terms to the right
-2x=-29
x=-29/-2
x=14+1/2
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