Step 1:

There are pens have.

Let represents the cost of pens.

Sofia paid , cameron paid and keylon paid .

Find the pens cost of

The equations are

Hence pens cost is.

Find how many pens would each get.

(i)

Sofia paid ,then

Sofia gets pens.

(ii)

Cameron paid , then

Cameron gets pens.

(iii)

Keylon paid ,then

Keylon gets pens.

Solution:

Sofia gets pens.

Cameron gets pens.

Keylon gets pens.