Question

"Neeraja and Girija of class 9 students together contributed 300 rupees for C.M relief fund." now make a linear equation for the given data?

Answer 1

let neerja=x and girija=y so equation is
x+y =300

Answer 2

let the money contributed by Neerahja be n and the money contributed by Girija be g .

Acc to the question. n + g = 300

We can predict the values as:
If n = 100, g = 200
if n = 200, g = 100
if n = 250, g = 50 etc

I hope it will help.