Question

(iv) x-3y - 7=0
3x – 3y-15=0
using cross multiplication​

Answer 1

Step-by-step explanation:

you take pen and pencil and rough then solve your cross multiplication and your rough copy then why you ask to me your question

Answer 2

Answer:

use formula

Step-by-step explanation:

x= b1c2 -b2c1 /a1b2- a2b1

put values

x= -3×-15 - (-3) × (-7)/ 1×(-3) - 3 × (-3)

x= 45 - 21/(-3)+9

x= 24/6

x=4

then y formula

y= c1 a2- c2a1/a1b2 - a2b1

y= -7×3- (-15)×1/ 1×-3- 3×(-3)

y= -21+15/ -3+9

y= -6/6

y=-1