-28=-4r

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Solution for -28=-4r equation:


-28=-4r

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

We move all terms containing r to the left and all other terms to the right. 
+4r=+28

We simplify left and right side of the equation. 
+4r=+28

We divide both sides of the equation by 04 to get r. 
r=7

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