28=-2(r-4)

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Solution for 28=-2(r-4) equation:


28=-2(r-4)

We simplify the equation to the form, which is simple to understand 
28=-2(r-4)

Reorder the terms in parentheses
28=+(-2r+8)

Remove unnecessary parentheses
+28=-2r+8

We move all terms containing r to the left and all other terms to the right. 
+2r=+8-28

We simplify left and right side of the equation. 
+2r=-20

We divide both sides of the equation by 02 to get r. 
r=-10

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