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2.5=x/2
We move all terms to the left:
2.5-(x/2)=0
We add all the numbers together, and all the variables
-(+x/2)+2.5=0
We get rid of parentheses
-x/2+2.5=0
We multiply all the terms by the denominator
-x+(2.5)*2=0
We add all the numbers together, and all the variables
-1x+5=0
We move all terms containing x to the left, all other terms to the right
-x=-5
x=-5/-1
x=+5
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