5-r=7

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Solution for 5-r=7 equation:


5-r =7

We simplify the equation to the form, which is simple to understand 
5-r=7

We move all terms containing r to the left and all other terms to the right. 
-1r=+7-5

We simplify left and right side of the equation. 
-1r=+2

We divide both sides of the equation by -1 to get r. 
r=-2

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