Question

faith is 16 years older than precoius in 10 years time. faith will be double Precious age. How old is precious?​

Answer 1

6 years old

Explanation:

Let
`f` represent Faith's current age and let
`p` represent Precious's current age.

Faith is 16 years older than Precious:

`f=p+16`

In 10 years' time, Faith will be double Precious's age:

`f+10=2(p+10)`

We can substitute the top equation into the bottom equation:

`(p+16)+10=2(p+10)`

We can combine like terms on the left side and expand out the right side:

`p+26=2p+20`

We can subtract p from both sides, and then subtract 20 from both sides to get:

`6=p`

This means Precious is 6 years old.