r=-5(-2)9-1

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Solution for r=-5(-2)9-1 equation:


r=-5(-2)9-1

We simplify the equation to the form, which is simple to understand 
r=-5(-2)9-1

Reorder the terms in parentheses
r=+(+10)*9-1

Reorder the terms in parentheses
r=+(+90)-1

Remove unnecessary parentheses
+r=+90-1

We move all terms containing r to the left and all other terms to the right. 
+1r=+90-1

We simplify left and right side of the equation. 
+1r=+89

We divide both sides of the equation by 1 to get r. 
r=89

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