Verified answer

1) x+ 5.3 = -4.9

x = -4.9 - 5.3

x = -10.2

2) -8.9 - x = -8.1

x = -8.9 + 8.1

x = 0.8

3) x - 5.4 = -8.32

x = -8.32 + 5.4

x = -2.92

4) x + 11/24 = 5/12

x = 5/12 - 11/24

x  = 10/24 - 11/24

x = - 1/24