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43=15*x
We move all terms to the left:
43-(15*x)=0
We add all the numbers together, and all the variables
-(+15x)+43=0
We get rid of parentheses
-15x+43=0
We move all terms containing x to the left, all other terms to the right
-15x=-43
x=-43/-15
x=2+13/15
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