Mathematics, 30.06.2019 04:00 bestdiva2
Donna and emily are sisters. donna’s age and emily’s age add up to 31. donna is 3 years younger than emily. how old are the two sisters? what is the system of equations for this problem and how do i solve it using the elimination method?
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Donna and emily are sisters. donna’s age and emily’s age add up to 31. donna is 3 years younger than...
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