Question #2607
Solve the equation x+y=4 if the domain is {(-4,-2,0,2,4)}
Expert's answer
We have to find pairs among numbers {-4,-2,0,2,4} whose sum is equal to 4. These are the following ones:
(0,4),
(4,0)
(2,2)
(0,4),
(4,0)
(2,2)
