Question

y -x + 2 = 0
x-2y -4 =0 solve for y.
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Answer 1

Answer:

y=-2

Step-by-step explanation:

y-x+2=0 or y-x=-2 or x-y=2......(1)

x-2y-4=0 or x-2y=4 .......(2)

from one we have x-y=2 thus X=y+2.....(3)

applying this value of x in (2) we get y+2-2y=4

-y+2=4

-y=2,

y=-2

Answer 2

Answer:

y'' - y' -2y = 0, y(0) =2 y'(0) = 1