Question

How do you solve the system `2x-3y=6` and `-2x+3y=-6`?

Answer 1

Given
`"[1] "2x-3y = 6`
`"[2] "-2x+3y = -6`

Note that by adding [1] and [2], we get
`color(white)("XXXXX")` `0 = 0`

(The equations are really just different versions of each other so there is no single solution).

The best we could do is suggest the solution is the infinite set
`color(white)("XXXXX")` `{(x, 2/3x-2) | AAxepsilonRR}`