6p - 0.80 = 9.52
Your goal is to isolate p.
You can add both sides by 0.80 to cancel 0,80 on left side:
6p - 0.80 + 0.80 =Â 9.52 + 0.80
6p =Â 9.52 + 0.80
6p =Â 10.32
Now divide both sides by 6:
6p / 6 =Â 10.32 / 6
p =Â 10.32 / 6
p =Â 1.72
So the cost of each gel pen is $1.72.
Hope this helps.