Question

the pair of linear equation 2x+y-3=0 and 6x+3y=9 has which solution ​

Answer 1

Step-by-step explanation:

2x+3y-3=0

6x+3y=9 or 6x+3y-9=0

A1=2,B1=1,C1=-3

A2=6,B2=3,C2=-9

A1/A2=1/3

B1/B2=1/3

C1/C2=1/3

here,A1/A2=B1/B2=C1/C2

hence,this pair of equations has infinitely many solutions

Answer 2

Answer:

2x+y-3=0.............1

6x+3y-9= 0 ............2

a1 =2 b1=1 c1 = -3

a2=6 b2=3. c2= -9

a1/a2 = b1/b2 = c1/c2

2/6 = 1/3 =-3/-9

1/3 = 1/3. = 1/3

line coincident each other

so equation has infinitely many solution