Age Difference Calculator



Let be 's age and be 's age. We have the following equations

  1. = - 12 ←younger means we subtract
  2. + = 60
Plugging in (1) to (2), we get:
( - 12) + = 60

Grouping like terms, we get:
2 - 12 = 60

Add 12 to each side:
2 - 12 + 12 = 60 + 12

Cancelling the 12 on the left side, we get:
2 = 72

Divide each side by 2
2
2
=
72
2

Cancelling the 2 on the left side, we get:
= 36 ←'s age

Calculate 's age:
Plugging = 36 into equation (1), we get
= 36 - 12
= 24 ←'s age