1.
A mathematical sentence like
b
- 432 = 197 is called a(n) ______.
A.
solution
B.
evaluation
C.
variable
D.
equation
Hint
2.
Write ''16 less than a number is 28'' as an equation.
A.
16
n
= 28
B.
28
C.
n
- 16 = 28
D.
n
+ 16 = 28
Hint
3.
When a number is decreased by 16, the result is 64. What is the number?
A.
80
B.
4
C.
1024
D.
48
Hint
4.
Which value is the solution of 3
x
– 7 = 14?
A.
8
B.
6
C.
7
D.
9
Hint
5.
Which value is the solution of
A.
108
B.
99
C.
117
D.
90
Hint