I have a last task to do, can you guide me through please.

**- The probability of a sniper shot to strike in a single shot is "P".**

It's known that if the sniper fires 3 times then the probability that from the three shots the sniper will strike at least one time and miss at least one time is 0.48.

A- Find "P".
So I was able to get these two equation according to Bernoulli's table:

Are these correct ? according to the task ? can anyone check it and I'll solve it, and if It's not truth can anyone help me fix it ?

Final equation was :

Final answer is : 0.8 / 0.2