Math 7 Unit 3 Practice Test: Algebraic Strategies

If green = x AND yellow=+1, then what is the equation modeled in the picture?

• -3x = 6

• 3x = 6

• 3x = -6

• 3 = 6x

Solve the equation represented in the model.

• 8

• -8

• 4

• -4

Which value of s makes the following true? 7x-3 = 14

• 2 3/7

• 1 4/7

• -1 4/7

• 98

Which of the following is the solution to the equation? -3z + 8 = -4

• -2

• -8

• 1.5

• -4

Solve for x:

(x-12)/6 = 5

• 12.83

• 18

• 42

• -0.167

John called a plumber to fix a leak in his bathroom. The plumber charged:

$45 to come to the house

$22 per hour

If the final bill was for $133, then how many hours was the plumber at the house?

• 1

• 2

• 3

• 4

1.25x + 10 >= 15

• A

• B

• C

• D

Which value of c makes the following true?

3c-5 > 7

• 5

• 4

• 3

• 1

Choose the correct dot and arrow direction for the solution to the inequality.

-3m + 10 < -11

• Open Circle

• Closed Circle

• Arrow points left <--

• Arrow points right -->

Which graph shows the correct solution?

26 > 8x+2

• A

• B

• C

• D