Question

The sum of Jim and Simon's ages is 96. If Simon is 12 years older than Jim, how old is Jim?

Answer 1

Let's say that Jim's age is `x`
Then, if simon if 12 years older than jim,

Simon is `x+12`
Then sum of Jim and Simon's age is `x+x+12`
And that equation is `=96`
Then,
`x+x+12=96`
Transferring 12 and adding the two `x` es,
`2x=84`
`x=42`
It is the age of Jim