Question

2p + q = 4
P - 5 = - 1

Answer 1

2p + q = 4P - 5 = - 1

achar o valor de (P)) 

P - 5 = - 1
P = - 1 + 5
P = 4       ( achar o valor de (q))

2p + q = 4
2(4) + q = 4
8  + q = 4
q = 4 - 8
q = - 4

assim
p = 4
q = - 4