Hay teman2 tlg aku yaa isi pr mm pliss pliss beserta jalannya ya no 9 ya kak

A) – 2x – 6y = 24
– 6y = 2x + 24
y = – 2/6 x – 4
m = – 2/6

b) 3x + 5y – 15 = 0
5y = – 3x + 15
y = – 3/5 x + 3
m = – 3/5

c) 4y = – x + 12
y = – ¼ + 3
m = – ¼