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7.5/2.5=x/3.5
We move all terms to the left:
7.5/2.5-(x/3.5)=0
We add all the numbers together, and all the variables
-(+x/3.5)+7.5/2.5=0
We add all the numbers together, and all the variables
-(+x/3.5)+3=0
We get rid of parentheses
-x/3.5+3=0
We multiply all the terms by the denominator
-x+3*3.5=0
We add all the numbers together, and all the variables
-1x+10.5=0
We move all terms containing x to the left, all other terms to the right
-x=-10.5
x=-10.5/-1
x=10+0.5/1
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