Unit Test

Question 1

Which equation is being modeled?

Revolt · Accepted Answer

3x + (–4) = x + 2

Question 2

Use the algebra tiles tool to model the equation 5x + (–6) = 6x + 4. What is needed to model the equation? Check all that apply.

Revolt · Accepted Answer

6 positive x-tiles on the right; 4positive unit tiles on the right; 6 negative unit tiles on the left

Question 3

What tiles need to be added to both sides to remove the smaller x-coefficient? What tiles need to be added to both sides to remove the constant from the right side of the equation? What is the solution?

Revolt · Accepted Answer

Selection 1: 5 negative x-tiles; Selection 2: 4 negative unit tiles; Selection 3: x = –6

Question 4

x =

Revolt · Accepted Answer

PENDING

Question 5

What was Edward’s mistake?

Revolt · Accepted Answer

In step 2, he had to add 5 positive unit tiles.

Question 6

x =

Revolt · Accepted Answer

PENDING

Question 7

What is the value for x when using algebra tiles to solve the equation x + 1 = –x + (–5)?

Revolt · Accepted Answer

x = –3

Question 8

Which statements are true when using algebra tiles to solve the equation 8x + (–4) = 11x + 5? Check all that apply.

Revolt · Accepted Answer

Add 8 negative x-tiles to both sides of the equation to create a zero pair on the left side.; Add 5 negative unit tiles to both sides of the equation to create a zero pair on the right side.; Divide both groups by 3.

Unit Test Answers

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