Answer:
p = 3*[ 4p+ 2p]
Step-by-step explanation:
Total number of pens = 3 times [ 4 blue pens + 2 black pens]
If we denote the total number of pens by p then the equation becomes
p = 3*[ 4.blue + 2black]
p = 12p+6p
p = 18p
There are total 18 pens out of which 12 pens are blue and 6 pens are black.
