Question 988164
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C=Charlie's age; M=Manny's age=C+9
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(C-4)+(M-4)=17
C-4+(C+9)-4=17
2C+1=17
2C=16
C=16 Charlie is 16 years old.
18yrs-16yrs=2yrs
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ANSWER: Charlie will be 18 years old in 2 years.