Question

age of father is twise the age of his son. 7 year ago the father was three times his son age. current age of son is?​

Answer 1

Answer:

x+3=7

..................

Answer 2

Currently the father’s age is twice his son’s, so:

F = 2S

and seven years ago, the father’s age was triple his son’s, so:

(F - 7) = 3(S - 7)

we have to get S value to know the current age of their son, let’s subsitute:

F = 2S

plugging it in the second equation:

(2S - 7) = 3(S - 7),

2S - 7 = 3S - 21

S = 14 (by moving numbers to the right and Ss to the left side then adding)

The Current age of their son is 14.