Question

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

Answer 1

Answer:

by using formula

Step-by-step explanation:

x= b1c2- b2c1/ a1b2 - a2b1

x= -1×9 - (-3)×3/3×-3 - 9×-1

x= -9+9/-9 + 9

x=0

y = c2a1 - c1a2/ a1b2 - a2b1

y= 9×3-3×9 / 3×(-3) - 9×-1

y= 27-27/-9+9

y = 0

Answer 2

Answer:

Step-by-step explanation:

I hope this Answer is help full ...