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2340+0.03x=3900+0.02x
We move all terms to the left:
2340+0.03x-(3900+0.02x)=0
We add all the numbers together, and all the variables
0.03x-(0.02x+3900)+2340=0
We get rid of parentheses
0.03x-0.02x-3900+2340=0
We add all the numbers together, and all the variables
0.01x-1560=0
We move all terms containing x to the left, all other terms to the right
0.01x=1560
x=1560/0.01
x=156000
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