Question

solve this


its urgent

see the attachment and do this
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Answer 1

x - y = 4

1. y = 0

x - y = 4

x - 0 = 4

x = 4

→ (x,y) = (0,4)

2. x = -1

x - y = 4

-1 - y = 4

-y = 4 - (-1 )

-y = 5

y = -5

→(x,y) = (-1, -5)

3. x = 0

y = -4

→ (x,y) = (0,-4)