SOLUTION: I am trying to solve for y and I am running into issues. 3x-y=0 4x-y=2 when I do the equations, I think I am adding or missing a step, in the first equation I do the follow

Question 751896: I am trying to solve for y and I am running into issues.
3x-y=0
4x-y=2
when I do the equations, I think I am adding or missing a step, in the first equation I do the following:
3x-y=0
Subtract 3x from both sides:
3x-y=0
-3x
-y=-3x+0 or -y=-3x
do I have to divide by -1? or do I stay at -y=3x?
Same for:
4x-y=2
-4x
-y=-4x+2
Do I divide by -1 or leave it at -y?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
hi,
I would use simultaneous equations:-
3x - y = 0......1
4x - y = 2......2
Subtract (1) from (2)
x = 2
Substitute x = 2 in (2)
4x - y = 2
4(2) - y = 2
8 - y = 2
-y = 2- 8
-y = -6
y = 6
x = 2: y = 6
Hope this helps.
:-)
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