Question

(iii) 3x - y = 3
3x - 3y=9​

Answer 1

Answer:

x=1

y= -2

Step-by-step explanation:

3x-y=3

.......(i)

x-y=9÷3

x-y=3

......(ii)

from (ii),we can write

x=3+y

.....(iii)

Substitute (iii) in (i),we get

3(3+y)=3

9+3y=3

3y=3-9

y=-6/3=-2

Substitute y=-2 in (iii)

x=3+(-2)

x=1