Question

Write two solution of x + y = 4​

Answer 1

Answer:

1)

if x=1 then

1+y=4

y=4-1

y=3

if y=0

then

x+0=4

x=4-0

x=4

2) if x=-1

-1+y=4

y=4+1

y=5

if y=-2

x+-2=4

x-2=4

x=4-2

x=2