SOLUTION: three years ago john was three times as old as bob. in four years, john will be 2 times as old as bob

SOLUTION: three years ago john was three times as old as bob. in four years, john will be 2 times as old as bob

Algebra.Com

Question 1020476: three years ago john was three times as old as bob. in four years, john will be 2 times as old as bob
Answer by FrankM(1040) (Show Source): You can put this solution on YOUR website!
(J-3)=3(B-3)
(J+4)=2(B+4)
J-3=3B-9
J+4=2B+8
J=3B-6
J=2B+4
3B-6=2B+4
B=10 J=24
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