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Mary is 21 years old. Her age is 9 years more than 3 times Harry’s age. Which equation can be used to determine x, Harry’s age in years?
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2 votes
Mary is 21 years old. Her age is 9 years more than 3 times Harry’s age. Which equation can be used to determine x, Harry’s age in years?

User Bayramucuncu
by
7.1k points

2 Answers

7 votes

Answer:

4 is his age

Explanation:

User Victor Ermolaev
by
7.9k points
6 votes

Answer: 21=3x+9 hope i helped

User LWC
by
7.5k points
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