SOLUTION: Jack was 9 years older than Phil. Together their ages totaled 153 years. What was their ages?

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Question 841636: Jack was 9 years older than Phil. Together their ages totaled 153 years. What was their ages?
Answer by jim_thompson5910(35256) About Me  (Show Source):
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Jack was 9 years older than Phil. Together their ages totaled 153 years. What was their ages?
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J = jack's age
P = phil's age

"Jack was 9 years older than Phil" ---> J+=+P+%2B+9

"Together their ages totaled 153 years" ----> J+%2B+P+=+153


J+%2B+P+=+153

P%2B9+%2B+P+=+153

2P+%2B+9+=+153

2P+=+153+-+9

2P+=+144

P+=+144%2F2

P+=+72

So Phil is 72 years old.

J+=+P%2B9

J+=+72%2B9

J+=+81

and Jack is 81 years old.