Answer:
m=-23/10
Step-by-step explanation:
-2 67/90=-247/90
m-4/9=-247/90
m=-247/90+4/9
m=-247/90+40/90
m=-207/90
66x + 8 = 20x - 15
66x - 20x = -15 - 8
46x = -23
x = -23/46
x = -1/2