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Mark is 15 years younger than Ashley. The sum of their ages is 55. Write a system of 2 equations to determine Mark (M) age and Ashley (A) age. I don't know how to write thi…

Mark is 15 years younger than Ashley. The sum of their ages is 55. Write a system of 2 equations to determine Mark (M) age and Ashley (A) age. I don't know how to write thi…
asked 108k views
5 votes
Mark is 15 years younger than Ashley. The sum of their ages is 55. Write a system of 2 equations to determine Mark (M) age and Ashley (A) age.

I don't know how to write this into 2 equations! Please help

asked
User Czuroski
by
8.4k points

1 Answer

2 votes
55=2a-15 or 55=a+(a-15)
answered
User Amma
by
8.2k points
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