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lorasvet [3.4K]
2 years ago
13

HELP PLEASE

Mathematics
2 answers:
crimeas [40]2 years ago
8 0

Let Jeff's age = x and Ben's age = x - 9.

(x + 10) + (x -9 + 10) = 67

x + 10 + x + 1 = 67

2x + 11 = 67

2x = 56

x = 28

x - 9 = 28 - 9 = 19

Jeff is 28 years old, and Ben is 19 years old.

diamong [38]2 years ago
5 0
If Jeff is x years old, Ben is x - 9 years old.

Ten years later, Jeff would be x + 10 years old and Ben would be (x - 9) + 10 years old.

x + 10 + (x - 9) + 10 = 67
2x + 11 = 67
2x = 56
x = 28

Jeff is 28 right now and Ben is 19 right now.
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