3x/(x+3)=7/5

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Solution for 3x/(x+3)=7/5 equation:



3x/(x+3)=7/5
We move all terms to the left:
3x/(x+3)-(7/5)=0
Domain of the equation: (x+3)!=0
We move all terms containing x to the left, all other terms to the right
x!=-3
x∈R
We add all the numbers together, and all the variables
3x/(x+3)-(+7/5)=0
We get rid of parentheses
3x/(x+3)-7/5=0
We calculate fractions
15x/(5x+15)+(-7x-21)/(5x+15)=0
We multiply all the terms by the denominator
15x+(-7x-21)=0
We get rid of parentheses
15x-7x-21=0
We add all the numbers together, and all the variables
8x-21=0
We move all terms containing x to the left, all other terms to the right
8x=21
x=21/8
x=2+5/8

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