Please help me solve for the following coefficients. The equation is:

Question

2X-Y=4

if X = 0, then Y = ?
if Y = 0, then X = ?
if X = 1, then y = ?
if Y = -6, then X =?

Thanks!

Answer 1

2x - y = 4
if x = 0
2(0) - y = 4
0 - y = 4
-y = 4
y = - 4

if y = 0
2x - 0 = 4
2x = 4
x = 2

Now, it's your turn.
Solve the rest just like the examples above.