9=4-r/7

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Solution for 9=4-r/7 equation:


9=4-r/7

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

Simplifying:
9=4-0.142857142857r

We move all terms containing r to the left and all other terms to the right. 
 + 0.142857142857r=+4-9

We simplify left and right side of the equation. 
 + 0.142857142857r=-5

We divide both sides of the equation by 00.142857142857 to get r. 
r=-35

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