-3(1-9r)=-4.2+27.2r

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Solution for -3(1-9r)=-4.2+27.2r equation:


-3(1-9r)=-4.2+27.2r

We simplify the equation to the form, which is simple to understand 
-3(1-9r)=-4.2+27.2r

Reorder the terms in parentheses
+(-3+27r)=-4.2+27.2r

Remove unnecessary parentheses
-3+27r=-4.2+27.2r

We move all terms containing r to the left and all other terms to the right. 
+27r-27.2r=-4.2+3

We simplify left and right side of the equation. 
-0.2r=-1.2

We divide both sides of the equation by -0.2 to get r. 
r=6

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