(21+x)/2=28.5

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Solution for (21+x)/2=28.5 equation: 



(21+x)/2=28.5

We move all terms to the left:

(21+x)/2-(28.5)=0

We add all the numbers together, and all the variables

(x+21)/2-(28.5)=0

We add all the numbers together, and all the variables

(x+21)/2-28.5=0

We multiply all the terms by the denominator


(x+21)-(28.5)*2=0

We add all the numbers together, and all the variables

(x+21)-57=0

We get rid of parentheses

x+21-57=0

We add all the numbers together, and all the variables

x-36=0

We move all terms containing x to the left, all other terms to the right

x=36

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