AnswersPre-Algebra - MA3119 A Distance LearningWriting and Evaluating Expressions

Solving One-Step Equations: Addition and Subtraction Answers

9 verified answers
1
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What should be done to solve the equation?

Question illustration
A
Add 14 to both sides of the equation.
B
Subtract 14 from the left side of the equation.
C
Add 14 to the left side and subtract 14 from the right side of the equation.
D
Subtract 14 from both sides of the equation.
2
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Which could be used to solve this equation?

Question illustration
A
Subtract from both sides of the equation.
Option A
B
3 and one-fifth minus 3 and one-fifth + n = 9 + 3 and one-fifth
Option B
C
Add to both sides of the equation.
Option C
D
9 + 3 and one-fifth = 12 and one-fifth
Option D
3

The sum of a number and twenty-one is sixty-four.What is the value of the number?The number equals .

Answer not available
4

Which equation can be used to solve for the unknown number?Seven less than a number is thirteen.

A
n minus 7 = 13
Option A
B
7 minus n = 13
Option B
C
n + 7 = 13
Option C
D
n + 13 = 7
Option D
5

Juan told Sylvia he got a $0.50 raise this week and his new hourly rate will be $10.25 an hour. Sylvia wants to know what Juan’s hourly rate was before his raise. Which equation and solution can be used to solve this problem?

A
: Add 10.25 to both sides. The answer is $10.75.
Option A
B
: Subtract .50 from both sides. The answer is $9.75.
Option B
C
: Subtract .50 from both sides. The answer is $10.75
Option C
D
: Subtract .50 from both sides. The answer is $9.75.
Option D
6

Sherina wrote and solved the equation. What was Sherina’s error?

Question illustration
A
Sherina’s work is correct.
B
Sherina only needed to subtract 56 from 230.
C
Sherina made a subtraction error when subtracting 56 from 230.
D
Sherina should have added 56 to both sides of the equation.
7

What is the solution to the equation ?

Question illustration
A
t minus 15 = 76. t minus 15 minus 15 = 76 + 15. t = 91.
Option A
B
t minus 15 = 76. t minus 15 + 15 = 76 + 15. t = 91.
Option B
C
t minus 15 = 76. t minus 15 minus 15 = 76 minus 15. t = 61.
Option C
D
t minus 15 = 76. t minus 15 + 15 = 76 minus 15. t = 61.
Option D
8

What is the solution to the equation?

Question illustration
A
t + 55 = 466. t + 55 minus 55 = 466 + 55. t = 521.
Option A
B
t + 55 = 466. t + 55 + 55 = 466 + 55. t = 521.
Option B
C
t + 55 = 466. t + 55 minus 55 = 466 minus 55. t = 411.
Option C
D
t + 55 = 466. t + 55 + 55 = 466 minus 55. t = 411.
Option D
9

The difference in the height of the two rectangles is 7 feet.What is the value of y?

Question illustration
Answer not available
10

Which equation and solution can be used to solve this problem?Twenty-two less than a number is twenty-four.

A
: Subtract 22 from both sides. The answer is 2.
Option A
B
: Subtract 22 from both sides. The answer is 2.
Option B
C
: Add 24 to both sides. The answer is 46.
Option C
D
: Add 22 to both sides. The answer is 46.
Option D

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