Question 556012
bill is 4 times as old as john.five year ago the sum of their ages was 50 how old are they now
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Equations:
b = 4*j
(b-5)+(j-5) = 50
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Substitute for "b" and solve for "j":
4j-5+j-5 = 50
5j = 60
j = 12 yrs. (john's age now)
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Solve for "b":
b = 4*j
b = 4*12 = 48 yrs (Bill's age now)
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