Mathematics

Hadassah Bradley

11 January, 07:48

4 (5x - 6) = 2 (8x + 10) Which of the following has all correct justifications Bradley used to solve this equation?

Step Work Justification

1. 20x - 24 = 16x + 20

2. 4x - 24 = 20

3. 4x = 44

4. x = 11

a. 1. Associative property of addition. 2. Subtraction property of equality. 3. Addition property of equality. 4. Multiplicative inverse.

b. 1. Associative property of addition. 2. Subtraction property of equality. 3. Addition property of equality. 4. Division property of equality.

c. 1. Distributive property. 2. Subtraction property of equality. 3. Addition property of equality. 4. Multiplicative property of equality.

d. 1. Distributive property. 2. Subtraction property of equality. 3. Addition property of equality. 4. Division property of equality.