Question

solve the question by substitution method...
3x-y= 4
9x-3y= 9

Answer 1

hi, 

the pb goes like this....
3x-y =3    equ..1
9x-3x=9   equ...2

from 1,we get
y=3x-3    equ..3

sub. this value in equ 2 , we get
9x-3(3x-3)=9
9x-9x+9=9            +9 and -9 gets cancelled...
9=9
this is always true

hence,the given pairs of the equations has infinite possible solutions and the relation between these variables can be given by y=3x-3 ....
∴ 1 of its possible solutions is x=1 and y=0

hope my ans helps u..

Answer 2

Step-by-step explanation:

please give me 100 thanks