Question

find a value of a, so that x=1 and y= 1 is a solution of 9ax+12ay=63​

Answer 1

Answer:

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