Module 7 Test Review

What is the value of y in the equation 2 + y = −3?

• −1

• -5

• 1

• 5

Tags

CCSS.6.EE.B.7

Mona solved an equation incorrectly, as shown below:

Step 1: 5x = 30

Step 2: x = 30 − 5

Step 3: x = 25

Which statement best explains why Step 2 is incorrect in Mona's solution?

• She did not add 5 to 30.

• She did not divide 30 by 5.

• She did not multiply 30 by 5.

• She did not multiply 30 five times.

Tags

CCSS.HSA.REI.A.1

How many solutions does the equation −2y + 2y + 3 = 3 have?

• One

• None

• Infinitely many

• Three

Tags

CCSS.8.EE.C.7A

What is the value of x in the equation 4(2x + 12) = 0?

• -8

• -6

• 8

• 6

Tags

CCSS.7.EE.B.4A

An equation is shown below:

2(3x − 5) = 1

Which of the following correctly shows the first two steps to solve this equation?

• Step 1: 6x − 10 = 1; Step 2: 6x = 11

• Step 1: 6x − 5 = 1; Step 2: 6x = 6

• Step 1: 5x − 3 = 1; Step 2: 5x = 4

• Step 1: 5x − 7 = 1; Step 2: 5x = 8

Tags

CCSS.7.EE.B.4A

How many solutions does the equation 6n − 6n − 12 = 14 − 2 have?

• Two

• One

• None

• Infinitely many

Tags

CCSS.8.EE.C.7A

The steps below show the incomplete solution to find the value of x for the equation 8x − 3x − 1 = −2 + 16:

Step 1: 8x − 3x − 1 = −2 + 16

Step 2: 8x − 3x − 1 = 14

Step 3: 5x − 1 = 14

Which of these is most likely the next step?

• 5x = 14

• 5x = 10

• 5x = 13

• 5x = 15

Tags

CCSS.8.EE.C.7B

What is the value of y in the equation 2(3y + 7 + 5) = 196 − 16?

• 13

• 14

• 26

• 28

Tags

CCSS.7.EE.B.4A

What is the solution to the following equation?

5(2x − 12) + 21 = 2x + 41

• 5

• 8

• 10

• 72

What is the value of a in the equation a = 2 + 3a + 8?

• 10

• 5

• -5

• -10

Tags

CCSS.8.EE.C.7B