SOLUTION: Al is 5years older than bill the sum of their ages =13 how old is each person

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Question 1086351: Al is 5years older than bill the sum of their ages =13 how old is each person
Answer by MathLover1(20850) About Me  (Show Source):
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Al is 5years older than Bill:
Al+=Bill%2B5....eq.1
the sum of their ages is 13:
Al%2BBill=13
Al=13-Bill....eq.2
from eq.1 and eq.2 we have
Bill%2B5=13-Bill
Bill%2BBill=13-5
2Bill=8
highlight%28Bill=4%29years old
Al+=Bill%2B5....eq.1
Al+=4%2B5
highlight%28Al+=9%29years old