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15=4x/2
We move all terms to the left:
15-(4x/2)=0
We add all the numbers together, and all the variables
-(+4x/2)+15=0
We get rid of parentheses
-4x/2+15=0
We multiply all the terms by the denominator
-4x+15*2=0
We add all the numbers together, and all the variables
-4x+30=0
We move all terms containing x to the left, all other terms to the right
-4x=-30
x=-30/-4
x=7+1/2
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