Question

How do you solve the system of equations `-7x - y = 23` and `7x + 2y = - 18`?

Answer 1

`(-4,5)`

Explanation:

Draw the graphs of the lines `-7x-y=23` and `7x+2y=-18`. Its intersection point is the solution.

As shown in the graph, `(-4,5)` is the intersection point. So, it is the solution of given lines.