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.
