A fathwr is 5 years more than 4 times his age. In 5 years he will be 3 times his sons age then. How old is the son now?
Did this problem.and we didnt underarand it as a group. If you can please help us and explain thia question
F = 4S + 5
F + 5 = 3(S+5)
Substitute 4S+5 for F in the second equation and solve for S.