Question

2x + 3y = 7
(p-q ) x + (p+q) y = 3 p + q -2
Hv Alan infinitive no of solutions

Answer 1

Step-by-step explanation:

a1/a2=b1/b2=c1/c2

2/p-q =3/p+q=7/3p+q-2

by cross multiplication,

3p-3q =2p+2q

3p-2p=2q+3q

p=5q---------------1

7p+7q=9p+3q-6

7p-9p =-7q+3q-6

-2p = -4q-6

-2p+4q=-6-------2

from 1and 2

p. -5q =0

-2p+4q=-6

by elimination method :

q=1

p=5