Question

Elimination method:
4x – 5y = -31

-12x + 15y = 93

Answer 1

multiply first equation by 3 and add bouth equations, you will get 0=0 It means bouth equations are the same. Infinitly many solutions

Answer 2

i have a feeling this is no solution

Answer 3

Times the top equation by 3.

12x-15y=-93
+-12x+15y=93
--------------
0x+0y=0

Answer 4

(1) 4x – 5y = -31

(2) -12x + 15y = 93

(1) 3(4x-5y=31)
12x-15y=93
-12x+15y=-93
x=0
y=0
This what I got but was not sure of it. So the answer would be no answer or infinate

Answer 5

infinite

Answer 6

12x-15y=93
-12x+15y=-93
---------------
0x+0y = 0

so for any x and any y this will be correct. It means infinitly many x and y are solutions

Answer 7

Thank you so much.