whole numbers are positive integers,
so start your table with
x y
1 2
2 3
...
and stop when x + 2y > 20
find all whole number solutions of each system using a tbalbe
-x + y = 1
x + 2y ≤ 20
1 answer
-x + y = 1
x + 2y ≤ 20
1 answer