9=r+7-4

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Solution for 9=r+7-4 equation:


9=r+7-4

We simplify the equation to the form, which is simple to understand 
9=r+7-4

We move all terms containing r to the left and all other terms to the right. 
-1r=+7-4-9

We simplify left and right side of the equation. 
-1r=-6

We divide both sides of the equation by -01 to get r. 
r=6

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