Evaluate the expression: 6(5 - 2 + a)

6a + 18

Step-by-step explanation:

Subtract the numbers : 6 (5 - 2 + a) = 6 (3 + a)

Rearrange terms : 6 (3 + a) = 6 (a + 3)

Distribute : 6 (a + 3) = 6a + 18

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation: