We want to slove the given equations using reverse order of operation
1. x - 4 = -2
Reverse subtraction of 4
x - 4 + 4 = -2 + 4
x = 2
2. a + 10 = -4
Reverse addition of 10
a + 10 - 10 = -4 - 10
a = -14
3. 59 = s + 90
Reverse addition of 90
59 - 90 = s + 90 - 90
-31 = s
s = -31
