Question

3x-y=3 and 9x-3y=9 cross multiplication method

Answer 1

Answer:

3x-y=3

9x-3y=9

-------------

12x-4y=12

4x-y=3

so,

4x-y=3

3x-y=3

- + -

-----------

x =0

and y=-3

Answer 2

Answer:

x = 0

and

Y = 3

aur full explanation see above question that's is right answer