Question

How many solution have the pair of linear equation 2x+3y-9=0 and 4x+6y-18=0?​

Answer 1

Answer

4

2

=

2

1

;

6

3

=

2

1

;

−18

−9

=

2

1

⇒ the system of linear equation is consistent with ∞ number of solutions

because

a

2

a

1

=

b

2

b

1

=

c

2

c

1

=

2

1