1.25(12-8r)=-1.3(9r-21)

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Solution for 1.25(12-8r)=-1.3(9r-21) equation:


1.25(12-8r)=-1.3(9r-21)

We simplify the equation to the form, which is simple to understand 
1.25(12-8r)=-1.3(9r-21)

Reorder the terms in parentheses
+(+15-10r)=-1.3*(9r-21)

Remove unnecessary parentheses
+15-10r=-1.3+*(+9r-21+)

Reorder the terms in parentheses
+15-10r=+(-11.7r+27.3)

Remove unnecessary parentheses
+15-10r=-11.7r+27.3

We move all terms containing r to the left and all other terms to the right. 
-10r+11.7r=+27.3-15

We simplify left and right side of the equation. 
+1.7r=+12.3

We divide both sides of the equation by 1.7 to get r. 
r=7.23529411765

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