Question

solve by cross multiplication , substitution , elimination mothod 3x+y=13 , x-3y = -9 ​

Answer 1

Answer:

from this you can find out the values of x and y

$\frac{x}{ - 60} = \frac{1}{ - 10 } \\ - 10x = - 60 \\ x = 6$

and y= -5 because 3(6)+y=13

y =13-18

= -5

.........hope it will be helpful