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


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