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2(x+3/5x)=800
We move all terms to the left:
2(x+3/5x)-(800)=0
Domain of the equation: 5x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
2(+x+3/5x)-800=0
We multiply parentheses
2x+6x-800=0
We add all the numbers together, and all the variables
8x-800=0
We move all terms containing x to the left, all other terms to the right
8x=800
x=800/8
x=100
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