40=-8(r-2)

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Solution for 40=-8(r-2) equation:


40=-8(r-2)

We simplify the equation to the form, which is simple to understand 
40=-8(r-2)

Reorder the terms in parentheses
40=+(-8r+16)

Remove unnecessary parentheses
+40=-8r+16

We move all terms containing r to the left and all other terms to the right. 
+8r=+16-40

We simplify left and right side of the equation. 
+8r=-24

We divide both sides of the equation by 08 to get r. 
r=-3

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