Tanya is 12 years older than Leah. Three years ago, Tanya was five times as old as Leah. How old is Leah?
See the solution process below:
First, let the age of Leah be represented by
The current age differences between Tanya and Leah can be written as:
We can write the age difference three years ago as:
We can subsitute
Leah is 6 years old.