Question

using linear equations in two variables and using substitution method

Answer 1

P-q =2 becomes p=2+q
now substituting the value of p in the second equation
4p-5q = 1
4(2+q) - 5q = 1
8 + 4q - 5q = 1
-q = 1 - 8
- q = -7
Hence q = 7

Answer 2

HOPE IT HELPS ................