SOLUTION: Joan is three years older than her sister margaret, the sum of their ages is 45. What is joans age?
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Question 831275: Joan is three years older than her sister margaret, the sum of their ages is 45. What is joans age?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
Substitute eq. 1 into eq. 2,
Then from eq. 1,
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