Question

p
$p \3 + p \4 = 55 - p + 40 \5$
​

Answer 1

P+p=55-p+40
2p=55+40-p
2p+p=95
3p=95
P=95/3
P=31.66

Answer 2

p+p=55-p+40
p+p=2p
2p=55-p+40
=55+40-p
2p-p=55+40
p=95