AnswersEA Academy Algebra IUnit Test

Solving Linear Equations: Variable on One Side Answers

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1
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Consider the functions shown on the graph.

Question illustration
A
0.0
B
0.5
C
1.5
D
3.0
2
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Solve the equation.5x + 8 − 3x = −10

A
x = −9
B
x = −1
C
x = 1
D
x = 9
3

What are the possible steps involved in solving the equation shown? Select three options.3.5 + 1.2(6.3 – 7x) = 9.38Add 3.5 and 1.2.Distribute 1.2 to 6.3 and –7x .Combine 6.3 and –7x .Combine 3.5 and 7.56.Subtract 11.06 from both sides.

A
Add 3.5 and 1.2.
B
Distribute 1.2 to 6.3 and –7x .
C
Combine 6.3 and –7x .
D
Combine 3.5 and 7.56.
E
Subtract 11.06 from both sides.
4

Consider the equation 3p – 7 + p = 13. What is the resulting equation after the first step in the solution?

A
p – 7 = 13 – 3p
B
p – 7 = 13 – 3p
C
2p – 7 = 13
D
2p – 7 = 13
E
3p – 7 = 13 – p
F
3p – 7 = 13 – p
G
4p – 7 = 13
H
4p – 7 = 13
5

A coordinate grid with 2 lines. One line, labeled f(x) passing through (negative 4, 3), the point (negative 2, 1) and (0, negative 1). The other line is labeled g(x) and passes through (negative 4, negative 1), the point (negative 2, 1) and (0, 3).

Question illustration
A
x = −3
B
x = −2
C
x = −1
D
x = 3
6

Sean began jogging to live a healthier lifestyle. On his first run, he ran one-half mile. He increased his workouts by adding two miles a month to his run. He wrote the equation f(x)= 0.5 + 2x to model his progress. The variable x represents the number of

A
miles he runs.
B
miles he runs.
C
months he runs.
D
months he runs.
E
miles he ran the first day.
F
miles he ran the first day.
G
calories he burns.
H
calories he burns.
7

Mustafa’s soccer team is planning a school dance as a fundraiser. The DJ charges $200 and decorations cost $100. The team decides to charge each student $5.00 to attend the dance. If n represents the number of students attending the dance, which equation can be used to find the number of students needed to make $1,500 in profit?

A
5n – 300 = 1,500
B
5n – 300 = 1,500
C
5n + 300 = 1,500
D
5n + 300 = 1,500
E
5n – 200 + 100n = 1,500
F
5n – 200 + 100n = 1,500
G
5n – 100 – 200n = 1,500
H
5n – 100 – 200n = 1,500
8

Rahul solved the equation 2(x – ) – x = . In which step did he use the addition property of equality?

Question illustration
A
Step 1
B
Step 1
C
Step 2
D
Step 2
E
Step 3
F
Step 3
G
Step 4
H
Step 4
9

A coordinate grid with 2 lines. One line, labeled f(x) passing through (negative 2, 4), (0, 2), and the point (1, 1). The other line is labeled g(x) and passes through (negative 3, negative 3), (0, 0) and the point (1, 1).

Question illustration
A
x = −1
B
x = 0
C
x = 1
D
x = 2
10

The Allied Taxi Company charges $2.50 to pick up a passenger and then adds $1.95 per mile. Isaac was charged $27.46 to go from one city to another. If x represents the number of miles driven by the taxi, which linear equation can be used to solve this problem, and how many miles did Isaac travel, rounded to the nearest tenth?

A
1.95x + 2.50 = 27.46; Isaac traveled 15.4 miles.
B
1.95x + 2.50 = 27.46; Isaac traveled 12.8 miles.
C
2.50x + 1.95 = 27.46; Isaac traveled 11.8 miles.
D
2.50x + 1.95 = 27.46; Isaac traveled 10.2 miles.

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