Mala is y years old her sister is 4 years older than mala write an expression in simplest form that repersents the sum of the ages of the sisters

We are given

Mala is y years old

So, Mala = y

her sister is 4 years older than Mala

So, Sister = y+4

now, we can find sum

Sum = Mala + Sister

Sum = y + y+4

Sum = 2y+4 ... Answer