Write the equation for each of the following statements (Each one is worth 10 points): 1) Xavier is nine years younger than Yolanda.​

2) Yolanda is seven years older than Zed.​

3) The sum of the ages of Xavier and Yolanda is twenty-five.

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For extra credit (3 points), solve for the ages of Xavier, Yolanda, and Zed.

What are the ages of Xavier, Yolanda, and Zed?

X = Y= Z=