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2*5(r-2)=3*20(r-4)
We simplify the equation to the form, which is simple to understand
2*5(r-2)=3*20(r-4)
Reorder the terms in parentheses
+(+10r-20)=+60*(r-4)
Remove unnecessary parentheses
+10r-20=+60+*(+r-4+)
Reorder the terms in parentheses
+10r-20=+(+60r-240)
Remove unnecessary parentheses
+10r-20=+60r-240
We move all terms containing r to the left and all other terms to the right.
+10r-60r=-240+20
We simplify left and right side of the equation.
-50r=-220
We divide both sides of the equation by -50 to get r.
r=4.4
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