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01-10-2021
Mathematics

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Zhang, who is z years old, is 5 years younger than Robert. The sum of their ages is 39. What are their ages?Write an equation. Solve.

Respuesta :

01-10-2021

Answer:

Zhang: 17, Robert: 22

Step-by-step explanation:

Robert's age would be z+5, 2×z+5=39, z=17 So Zhang's age would be 17, and Robert's would be 22

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