1.
Find the solution of 72 +
z
= 84 if the value of
z
can be selected from the set {4, 8, 12, 16}.
A.
12
B.
4
C.
8
D.
16
Hint
2.
Solve 3
x
= 18.
A.
6
B.
7
C.
15
D.
21
Hint
3.
Solve
n
– 2 = 5.
A.
7
B.
3
C.
–3
D.
–7
Hint
4.
Solve 3
q
+ 6 = 15.
A.
9
B.
7
C.
2
D.
3
Hint
5.
Find a number for
x
that will make the equation true.
x
÷ 8
7
A.
any number less than or equal to 56
B.
any number greater than or equal to 56
C.
any number greater than 56
D.
56
Hint