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At practice, Tom does three times as many push-ups as Justin, and also 50 jumping jacks. He does 72 exercises in total. The equation 3x + 50 = 72 describes this situation. What does the variable z represent?
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At practice, Tom does three times as many push-ups as Justin, and also 50 jumping jacks. He does 72 exercises in

total. The equation 3x + 50 = 72 describes this situation. What does the variable z represent?

User Leen
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1 Answer

4 votes
X= 7 1/3
Explanation- Take 72 and subtract 50 from that giving you 22. Then take 22 and divide it by 3 to get 7.3333333333333 (repeats) or 7 1/3
User Song Gao
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