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2/3r-1/5r=r-1
We move all terms to the left:
2/3r-1/5r-(r-1)=0
Domain of the equation: 3r!=0
r!=0/3
r!=0
r∈R
Domain of the equation: 5r!=0We get rid of parentheses
r!=0/5
r!=0
r∈R
2/3r-1/5r-r+1=0
We calculate fractions
-r+10r/15r^2+(-3r)/15r^2+1=0
We add all the numbers together, and all the variables
-1r+10r/15r^2+(-3r)/15r^2+1=0
We multiply all the terms by the denominator
-1r*15r^2+10r+(-3r)+1*15r^2=0
We add all the numbers together, and all the variables
10r-1r*15r^2+(-3r)+1*15r^2=0
Wy multiply elements
-15r^3+15r^2+10r+(-3r)=0
We get rid of parentheses
-15r^3+15r^2+10r-3r=0
We do not support erpression: r^3
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