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

1 Answer
Mar 11, 2017

(-4,5)

Explanation:

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

GeoGebraGeoGebra

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