Question

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

Answer 1

The answer is `S={O/ }`

Explanation:

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

Divide by `5`, the second equation

`-4x-y=6`, `4x+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]}