How do you solve x-4y=-8 and -3x+12y=24?

2 Answers
Aug 4, 2015

There is no unique solution for the given equation(s)

Explanation:

[1]color(white)("XXXX")x-4y=-8
and
[2]color(white)("XXXX")-3x+12y=24

are actually the same equation
color(white)("XXXX")color(white)("XXXX")([1} multiplied by (-3) is the same as [2])

They are not 2 intersecting equations.

Aug 4, 2015

You have oo solutions.

Explanation:

The second equation is equal to the first one multiplied by -3; so basically you have two equations representing two coincident lines (technically one on top of the other) so your system has oo solutions corresponding to the oo number of common points between the two lines!