1.
Solve the equation 3
x
+ 7 = 5
x
- 2.
A.
B.
C.
D.
Hint
2.
Solve the equation 7 = 2 + 5(
z
- 2).
A.
B.
2
C.
D.
3
Hint
3.
What is the solution of 4.1 + 2
p
= 6.5?
A.
1.2
B.
8.9
C.
2.4
D.
6.5
Hint
4.
Find a solution to the equation using backtracking.
A.
x
= 11
B.
x
= 8
C.
x
= 10
D.
x
= 9
Hint
5.
Nine more than a number is the same as 18 less than 4 times the same number. What is the number?
A.
y
= –9
B.
y
= –8
C.
y
= 8
D.
y
= 9
Hint
6.
Find how many blocks are in each bag to balance the scale.
A.
B.
C.
D.
Hint
7.
Ken and Mali put candies in bags to give away at Ken's birthday party. They started with an equal number of candies and put the same number in each bag. Ken filled nine bags and had three candies left. Mali filled eight bags and had ten candies left. How many candies were in each bag?
A.
8 candies
B.
10 candies
C.
9 candies
D.
7 candies
Hint
8.
Solve the equation for
r
.
7
r
+ 6 = 4
r
– 9
A.
r
= –3
B.
r
= 6
C.
r
= 2
D.
r
= –5
Hint
9.
Simplify the equation.
y
= –2(
x
– 7) – (9 + 5x)
A.
y
= 7
x
– 5
B.
y
= 3
x
– 16
C.
y
= –7
x
+ 5
D.
y
= –16
x
+ 3
Hint
10.
Find the linear equation.
A.
y
= 7
x
(
x
– 1) + 4(9.6 –
x
)
B.
y
=
x
+
x
2
– 7
x
+ 4.9
C.
y
= 10(
x
– 8) + 3
x
2
D.
y
= 5.2(
x
– 6) – 2(4 – 3
x
)
Hint