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3x/x-4=3/7
We move all terms to the left:
3x/x-4-(3/7)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
3x/x-4-(+3/7)=0
We get rid of parentheses
3x/x-4-3/7=0
We calculate fractions
21x/7x+(-3x)/7x-4=0
We multiply all the terms by the denominator
21x+(-3x)-4*7x=0
Wy multiply elements
21x+(-3x)-28x=0
We get rid of parentheses
21x-3x-28x=0
We add all the numbers together, and all the variables
-10x=0
x=0/-10
x=0
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