Answer:
1). x = 2
2). x = -10
3). x =

4). x = 10
Explanation:
1). x - 6 = -4
(x - 6) + 6 = -4 + 6 [By adding 6 to both the sides of the equation]
x = 2
2). x + 3 = -7
(x + 3) - 3 = -7 - 3 [By subtracting 3 to both the sides of the equation]
x = -10
3). 5x = -2
[By dividing with 5 from both the sides of the equation]
x =

4). 0.5x = 5
[By dividing with 0.5 from both the sides of the equation]
x = 10