Help me solve this prob

x-3y=27
2x-y=9....pleassee

1) x-3y=27

2) 2x-y=9
<=> 3(2x-y)=27

3) x-3y=3(2x-y)
<=> x-3y=6x-3y
<=> x-6x=-3y+3y
<=> -5x=0
<=> x=0

4) x-3y=27
<=> 0-3y=27
<=> y=27/(-3)=-9

5) So x=0 and y=-9

I found this on the internet
The link will be under the answer if you want to check it

x - 3y = 27

Multiplying with 2 we get,

2x - 6y = 54

2x - y = 9

(-) (+) (-)

=============

-5y = 45

therefore y = 45/(-5) = -9

x - 3y = 27

x - 3(-9)= 27

x + 27 = 27

therefore x = 27 - 27 = 0

i can only answer 1 question
2x-y=9
x=5
y=1
hope u find this useful :-)