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Exploring Equations

Directions: For each problem below, use the digits 1 to 9 at most one time each, to fill in the boxes to find the the greatest value for x that you can.



Where should the 9 go or not go? Where should the 1 go or not go?



(1/8)x + 2 = 9 yields a solution of 56.

(1/9)x – 8 = 7 and (1/9)x – 7 = 8 both have a solution of 135.

Source:  Chase Orton and Mark Goldstein

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