3(r-1)+2(r-1)=20

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Solution for 3(r-1)+2(r-1)=20 equation:


3(r-1)+2(r-1)=20

We simplify the equation to the form, which is simple to understand 
3(r-1)+2(r-1)=20

Reorder the terms in parentheses
+(+3r-3)+2*(r-1)=20

Remove unnecessary parentheses
+3r-3+2+*(+r-1+)=+20

Reorder the terms in parentheses
+3r-3+(+2r-2)=20

Remove unnecessary parentheses
+3r-3+2r-2=+20

We move all terms containing r to the left and all other terms to the right. 
+3r+2r=+20+3+2

We simplify left and right side of the equation. 
+5r=+25

We divide both sides of the equation by 5 to get r. 
r=5

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