Question

At what value of x do the graphs of the equations below intersect?

2х - у = 6
5х + 10у = -10
оооо

Answer 1

x = 2

Explanation:

Multiply the first equation by 10. Then add the 2 equations.

20x - 10y = 60

(5x + 10y = -10)

This gives you 25x = 50. x = 2