100=-5(-2+r)

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Solution for 100=-5(-2+r) equation:


100=-5(-2+r)

We simplify the equation to the form, which is simple to understand 
100=-5(-2+r)

Reorder the terms in parentheses
100=+(+10-5r)

Remove unnecessary parentheses
+100=+10-5r

We move all terms containing r to the left and all other terms to the right. 
+5r=+10-100

We simplify left and right side of the equation. 
+5r=-90

We divide both sides of the equation by 05 to get r. 
r=-18

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