Question

Find the value of a, so that x=1 and y=1 is a solution of 9ax+ 12 ay=6​

Answer 1

Answer:

Correct option is

B

3

Given equation is:

9ax+12ay=63

In question given x=1,y=1

Putting x and y values in equation

⇒9a(1)+12a(1)=63

⇒9a+12a=63

⇒21a=63

⇒a=3

Answer 2

Answer:

1/21

Step-by-step explanation:

9ax + 12ay = 6

put x=1 and y=1

9a (1) +12a(1) =1

9a + 12a = 1

21a =1

a = 1/21