Question

Which algebraic expression is equivalent to the expression below? (3x - 3) + 3 A. 3x + 6 B. 3x C. 3x - 6 D. 9x

Answer 1

Answer:

b. 3x

Step-by-step explanation:

(3x - 3) + 3 = 3x - 3 + 3 = 3x

Answer 2

Answer:

3x

Step-by-step explanation:

(3x - 3) + 3 = (3x + -3) + 3

use the Associative Property of Addition: (a + b) + c = a + (b + c)

= 3x + (-3 + 3)

use Inverse Property of Addition: a + (-a) = (-a) + a = 0

= 3x + 0

use Identity Property of Addition: a + 0 = 0 + a = a

= 3x