Question

What is the ordered pairs that satisfy the equation `6x - 1y = 21`?

Answer 1

There are an infinite amount.

Explanation:

This equation is a line. There are infinitely many ordered pairs that can satisfy the equation `6x-1y=21`.

Here's a graph, on which you can see every single point that satisfies the equation:
graph{6x-y=21 [-17.03, 19, -8.47, 9.56]}

Some (but not all!) examples of points that DO work would be `(0,-21),(21/6,0),(4,3),(2,-9),` and `(5/3,-11)`.