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100(x+3)=2187
We move all terms to the left:
100(x+3)-(2187)=0
We multiply parentheses
100x+300-2187=0
We add all the numbers together, and all the variables
100x-1887=0
We move all terms containing x to the left, all other terms to the right
100x=1887
x=1887/100
x=18+87/100
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