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8700=2/5x+100
We move all terms to the left:
8700-(2/5x+100)=0
Domain of the equation: 5x+100)!=0We get rid of parentheses
x∈R
-2/5x-100+8700=0
We multiply all the terms by the denominator
-100*5x+8700*5x-2=0
Wy multiply elements
-500x+43500x-2=0
We add all the numbers together, and all the variables
43000x-2=0
We move all terms containing x to the left, all other terms to the right
43000x=2
x=2/43000
x=1/21500
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