Question

How many solutions does this system of equations have?
5x-4y=11
4y=5x-9

Answer 1

use the substitution method

Answer 2

or check the slopes to see if they're the same

Answer 3

first equation\[5x-4y=11\]\[4y=5x-11\]\[y=5/4x-11/4\]
second equation
\[4y=5x-9\]\[y=5/4x=9/4\]

looking at the general forms of these equations we can see that they have the same slope and different intercepts,
this means the lines are parallel and thus there is no solution

Answer 4

*\[y=5/4x-9/4\]

Answer 5

oh okay. I think i understand this a little bit better now. Thanks so all! God bless!