9+r/7=12

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Solution for 9+r/7=12 equation:


9+r/7=12

We simplify the equation to the form, which is simple to understand 
9+r/7=12

We move all terms containing r to the left and all other terms to the right. 
 + 0.14285714285714r=+12-9

We simplify left and right side of the equation. 
 + 0.14285714285714r=+3

We divide both sides of the equation by 0.14285714285714 to get r. 
r=21

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