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(21+x)/2=26.5
We move all terms to the left:
(21+x)/2-(26.5)=0
We add all the numbers together, and all the variables
(x+21)/2-(26.5)=0
We add all the numbers together, and all the variables
(x+21)/2-26.5=0
We multiply all the terms by the denominator
(x+21)-(26.5)*2=0
We add all the numbers together, and all the variables
(x+21)-53=0
We get rid of parentheses
x+21-53=0
We add all the numbers together, and all the variables
x-32=0
We move all terms containing x to the left, all other terms to the right
x=32
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