Question

Please help will give 50 points​

Answer 1

1. A) Contradiction

2. C) Identity

3. z = ( - oo, 7)

Answer 2

• 1. A) Contradiction
• 2. C) Identity
• 3. z = ( - oo, 7)

Explanation:

1. Simplifying

• 4(x + 3) = -7(6 + 2x) + 18x
• 4x + 12 = -42 - 14x + 18x
• 4x + 12 = 4x - 42

The left and right sides are different so the answer is:

• A) Contradiction

2. Simplifying

• 5(x - 9) + 10x = 6x + 9(x - 5)
• 5x - 45 + 10x = 6x + 9x - 45
• 15x - 45 = 15x - 45

The left and right sides are identical so the answer is:

• C) identity

3. Solving inequality:

• -2( -3z + 3) < 2z + 22
• 6z - 6 < 2z + 22
• 4z < 28
• z < 7
• z = ( - oo, 7)