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Exploring Equations

Directions:  For each problem below, use four of the whole numbers 1 through 9 no more than one time each to find the the greatest value for x that you can.




Where shoud the 9 go or not go? Where should the 1 go or not go? Explore “Two-Step Equations” problem first. How can we use our learning from that problem to tackle this problem?



(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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