Question

Question 1 (Essay Worth 10 points) (07.01 MC) Part A: Explain why x = 6 makes 4x − 5 ≤ 19 true but not 4x − 5 < 19. (5 points) Part B: What value from the set {4, 5, 6, 7, 8} makes the equation 4x + 3 = 23 true? Show your work. (5 points)

Answer 1

Part 1:
4x − 5 ≤ 19 is true because:
4*6-5=24-5=19 and 19≤19

Part 2:
4x+3=23    |-3
4x=23-3
4x=20        |/4
x=20/4
x=5

Answer 2

How would you write out part b?