Answer:
y = 5x - 6
Step-by-step explanation:
(a) -2-(-9)=-2+9
=7
(b) -2-9=-11
(c) -2-(-9)-(-2)=-2+9+2
=9
3(2x-5)=6x+k
6x-15=6x+k
6x-6x=k+15
0=k+15
k=-15