Question 1139761
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J + B = 60

J - B = 18

-------------------  Add the equations


2J    = 60 + 18 = 78


J = 78/2 = 39.


Then from the first equation  B = 60-J = 60 - 39 = 21.


<U>ANSWER</U>.  Jerry 39;  Bill 21.
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Solved.