Equations and Inequalities

-12x + 8 + 5x = 36

• -4

• 7

• 4

• -7

-2y + 4 = 8y - 6

• 10

• -1

• 1

• 1/5

3h - 2(4h - 5) = 10 - 5h

• -10

• Infinite

• 10

• No Solution

3 |x - 4| + 1 = 19

• {7, 1}

• {10, -3}

• {-10,-3}

• {6, 3}

w = 7a + 4b, solve for b

• w = 7a + 4b

• b = 7a/4

• 4b = w - 7a

• b = w/4 - 7a/4

The length of a rectangle is five inches less than twice its width. If the rectangle has a perimeter

of 80 inches, find the length and width.

• w + 2w - 5 = 80

• 5 - 2w + w =80

• 5 - 2w x L = 80

• I have no idea

-2 (x - 5) < 4

• x < -3

• x > 3

• x < 3

• x = 3

2(4x – 3) ≤ 5x – 27

• x ≤ -7

• x < 7

• x > 9

• x ≤ 20

4x + 7(3x – 3) ≤ 9 – 5x Find the solution in Interval Notation

• [-1, ∞)

• [1, ∞)

• (-∞, -1]

• (-∞, 1]

-12 ≤ 2x – 4 < -4 Solve the inequality

• -2 ≤ x < 6

• -10 ≤ x < -2

• -10 ≤ x < -2

• -4 ≤ x < 0