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Huilan is 7 years older than Thomas. The sum of their ages is 89 . What is Thomas's age?

Huilan is 7 years older than Thomas. The sum of their ages is 89 . What is Thomas's age?
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3 votes
Huilan is 7 years older than Thomas. The sum of their ages is 89 . What is Thomas's age?

User Danielbuechele
by
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2 Answers

4 votes
89-7=82 82/2=41 Thomas is 41.
User Silfheed
by
8.1k points
4 votes
Huilan: x + 7 Thomas: x

x + 7 + x = 89
2x + 7 = 89
2x = 82
x = 41
So Thomas is 41 years old
User Luisgepeto
by
7.9k points
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