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120/30=x/500
We move all terms to the left:
120/30-(x/500)=0
We add all the numbers together, and all the variables
-(+x/500)+120/30=0
We add all the numbers together, and all the variables
-(+x/500)+4=0
We get rid of parentheses
-x/500+4=0
We multiply all the terms by the denominator
-x+4*500=0
We add all the numbers together, and all the variables
-1x+2000=0
We move all terms containing x to the left, all other terms to the right
-x=-2000
x=-2000/-1
x=+2000
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