Question

Hello, can somebody help?

x+4y=9

if x = y+4

Answer 1

4x + 8y =12 [inconsistent]

x + 2y = -3

x = 6 [inconsistent]

x = -2

2y = 5x + 6 [inconsistent]

-10x + 4y = 8

x - 3y=2

4x - 12y = 8 [dependent]

x+ 4y = 12 [independent]

2x - 8y = 4

4x + 8y = -6 [dependent]

6x + 12y = -9

4y - 2x = 6 [inconsistent]

8y = 4x -12

y - x = 0 [independent]

y = -x

2y - x = 4

1/2x - y = 2 [inconsistent]

Explanation: