Question

প্রতিস্হাপন পদ্ধতিৰে সমাধা কৰা -
3X-Y=3----------------(1)
9X-3Y=9-------------(2)​

Answer 1

Answer:

9

Step-by-step explanation:

Given,

3X-Y=3 -----------(1)

9X-3Y=9 ---------(2)

so,

Y=3X-3. -----(3) [ From 1st equation]

by substituting the equ.(3)in equ.(2)

= 9X-3(3X-3)

= 9X -9X+9

= 0+9

= 9

So, the answer is 9.

I think it's helpful for you..