How do you solve 4x+y=264x+y=26 and -20x-5y=3020x5y=30 using matrices?

1 Answer
Dec 24, 2016

The answer is S={O/ }S={}

Explanation:

The first equation is 4x+y=264x+y=26

Divide by 55, the second equation

-4x-y=64xy=6, 4x+y=-64x+y=6

The equations are parallel

There are no solutions.

graph{(4x+y-26)(-20x-5y-30)=0 [-36.52, 36.53, -18.26, 18.28]}