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x+(x*18/100)=300
We move all terms to the left:
x+(x*18/100)-(300)=0
We add all the numbers together, and all the variables
x+(+x*18/100)-300=0
We get rid of parentheses
x+x*18/100-300=0
We multiply all the terms by the denominator
x*100+x*18-300*100=0
We add all the numbers together, and all the variables
x*100+x*18-30000=0
Wy multiply elements
100x+18x-30000=0
We add all the numbers together, and all the variables
118x-30000=0
We move all terms containing x to the left, all other terms to the right
118x=30000
x=30000/118
x=254+14/59
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