maths question

The first person who replied used substitution (and did it wrong), but here is it in elimination form and substitution

So in this problem it would be easier to substitute since it already gives us x

y-x=14

x=4y-2

To substitute it we can do y-(4y-2)=14

To get y = -4

We can then plug it into the X equation to get

x = -18

So the answer above is wrong

We can multiply the first sentence by 4 to get

4y-4x=56

We can then get the two equations:

4y-4x=56

4y-2=x

Then we can subtract these two equations from each other the eliminate the y.