-5(1-4r)-5r=100

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Solution for -5(1-4r)-5r=100 equation:


-5(1-4r)-5r=100

We simplify the equation to the form, which is simple to understand 
-5(1-4r)-5r=100

Reorder the terms in parentheses
+(-5+20r)-5r=100

Remove unnecessary parentheses
-5+20r-5r=+100

We move all terms containing r to the left and all other terms to the right. 
+20r-5r=+100+5

We simplify left and right side of the equation. 
+15r=+105

We divide both sides of the equation by 15 to get r. 
r=7

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