Problem : Evaluate 6-3.

.

Problem : Evaluate (- 5)-2.

.

Problem : Evaluate ()-4.

.

Problem : Evaluate (- )-3.

-8.

Problem : Evaluate 16.

128.

Problem : Evaluate 8.

16.

Problem : Evaluate 343.

49.

Problem : Evaluate (- 9).

Ø (no real solutions).

Problem : Evaluate ()-.

.

Problem : If x = 16, what is x?

x = 16 = 8.

Problem : If x- = 7, what is x?

x = 7-3 = .

Problem : If x-4 = , what is x?

x = ()- = 5.