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2r/5r-7/3=2/3
We move all terms to the left:
2r/5r-7/3-(2/3)=0
Domain of the equation: 5r!=0We add all the numbers together, and all the variables
r!=0/5
r!=0
r∈R
2r/5r-7/3-(+2/3)=0
We get rid of parentheses
2r/5r-7/3-2/3=0
We calculate fractions
6r/15r+(-10r-7)/15r=0
We multiply all the terms by the denominator
6r+(-10r-7)=0
We get rid of parentheses
6r-10r-7=0
We add all the numbers together, and all the variables
-4r-7=0
We move all terms containing r to the left, all other terms to the right
-4r=7
r=7/-4
r=-1+3/4
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