Alright, lets get started.
Suppose Steve have number of pencils = x
Martha has 4 times as many as Steve
Hence, Martha have number of pencils = 4 x
So, total number of pencils they both have

So, total number of pencils they both have

As per given in question, number of total pencils are 85.
So,

Dividing 5 in both sides


It means setve have 17 pencils
Martha has pencils =

Steve has 17 and Martha has 68 pencils. : Answer
Hope it will help :)