Unit 1 Review

3x - 10 = 20

• x = 3

• x = 5

• x = 7

• x = 10

Tags

CCSS.7.EE.B.4A

5x + 7 + 8 = 2x + 9

• x = 1

• x = -2

• x = 3

• x = 4

2(x - 8) = 3 + 5

• x = 6

• x = 12

• x = -12

• x = -4

Tags

CCSS.7.EE.B.4A

|2x - 1| = 13

• x = -6, x = -7

• x = 7

• x = 6

• x = -6, x = 7

2|3x + 1| = 16

• x = 7/3

• x = -3

• x = 7/3, x = -3

• x = 7/3, x = 3

5(4x + 8) ≥ 160

Solve the inequality. What is the correct interval notation?

• (3, ∞)

• [12, ∞)

• (6, ∞)

• [6, ∞)

7w - 8 ≥ 20 or 6w - 3 < -9

• w ≥ 4 or w < -1

• w ≥ 4

• w < -1

• w ≥ 8 or w < 2

8c - 1 ≤ 15 or 3c + 1 < 14

• c ≤ 2

• c ≤ 2 or c > 5

• c ≤ 2 or c < 5

• c ≤ 2 or c ≤ -5

35 < 9k + 8 ≤ 53

Solve the inequality. What is the correct interval notation?

• (3, 5)

• (3, 5]

• [3, 5]

• [3, 5)

-37 ≤ 10q + 3 < 63

• q ≥ -4

• q < 6

• -4 ≤ q < 6

• -4 ≥ q > 6