40(20r-40)=3(20r-80)

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Solution for 40(20r-40)=3(20r-80) equation:


40(20r-40)=3(20r-80)

We simplify the equation to the form, which is simple to understand 
40(20r-40)=3(20r-80)

Reorder the terms in parentheses
+(+800r-1600)=3*(20r-80)

Remove unnecessary parentheses
+800r-1600=+3+*(+20r-80+)

Reorder the terms in parentheses
+800r-1600=+(+60r-240)

Remove unnecessary parentheses
+800r-1600=+60r-240

We move all terms containing r to the left and all other terms to the right. 
+800r-60r=-240+1600

We simplify left and right side of the equation. 
+740r=+1360

We divide both sides of the equation by 740 to get r. 
r=1.8378378378378

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