Question

2) 5x-4y=8; 7x+6y=9 is the consistent or inconsistent?​

Answer 1

Answer:

5x−4y+8=0

⇒a1 =5, b1=−4, c1=8

7x+6y−9=0

⇒a2 =7, b2=6, c2=−9

∴ a1/a2= 5/7

b1/b2=-4/6

c1/c2=8/-9

a1/a2 #b1/b2

Therefore we have a unique solution.

Our system is consistent.