TEAS Math: Algebra and Equations 3 — Questions and Answers
Question 1: Solve for x: -2x = 12.
- -6 (Correct answer)
- 6
- -10
- 10
Correct answer: -6
Divide both sides by -2 to get x = -6.
Question 2: What is the slope of the line y = 4x - 3?
- 4 (Correct answer)
- -3
- 3
- -4
Correct answer: 4
In slope-intercept form y = mx + b, the slope m is 4.
Question 3: Solve for x: 7x + 5 = 47.
- 6 (Correct answer)
- 7
- 8
- 5
Correct answer: 6
Subtract 5 to get 7x = 42, then divide by 7 to get x = 6.
Question 4: Simplify: 3(2x - 4) + 5.
- 6x - 7 (Correct answer)
- 6x - 12
- 6x + 1
- 6x - 9
Correct answer: 6x - 7
Distribute to get 6x - 12, then add 5 to get 6x - 7.
Question 5: If 3x = 4x - 9, what is x?
- 9 (Correct answer)
- -9
- 3
- -3
Correct answer: 9
Subtract 3x from both sides to get 0 = x - 9, so x = 9.
Question 6: Solve for x: (x - 2)/3 = 4.
- 14 (Correct answer)
- 10
- 12
- 6
Correct answer: 14
Multiply by 3 to get x - 2 = 12, then add 2 to get x = 14.
Question 7: Evaluate the expression x² - 2x when x = 3.
- 3 (Correct answer)
- 9
- 6
- 15
Correct answer: 3
3² - 2(3) = 9 - 6 = 3.
