I can only see # 3 and # 5
3. 2.4x - 9.1x - 12.5x = -39.44
combine like terms
-19.2x = -39.44
divide both sides by -19.2
x = 2.05 rounded
5. 5/11x + 2/3x - 1/6x = -189
give common denominator of 66
30/66x + 44/66x - 11/66x = -189
combine like terms
66/66x or x = -189