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20/4=x/10
We move all terms to the left:
20/4-(x/10)=0
We add all the numbers together, and all the variables
-(+x/10)+20/4=0
We add all the numbers together, and all the variables
-(+x/10)+5=0
We get rid of parentheses
-x/10+5=0
We multiply all the terms by the denominator
-x+5*10=0
We add all the numbers together, and all the variables
-1x+50=0
We move all terms containing x to the left, all other terms to the right
-x=-50
x=-50/-1
x=+50
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