Pre-Algebra Final Exam

Simplify this expression:

-7w + (-6) + 5 + (-9w)

• -2w - 1

• -16w - 11

• -16w - 1

• -2w + 11

Use the distributive property to find an equivalent expression of: 5(7m + 9)

• 35 + 45
• 35m + 45 
• 7m + 45
• 80m

Combine the like terms to create an equivalent expression of:
 6m + 4m + 3c + 2c

• 11m + 6c
• 10m + 3c + 5c
• 10m + 5c
• 15mc

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

Evaluate -2x + -3y if x = 10 and y = -6

• 18

• -38

• 12

• -2

b² + 4
when b = 3

• 10
• 12
• 13
• 11

Add these expressions
(x+5) + (2x+10)

• 3x+15
• x-5
• 18x

(19 x 5) x 2 = 19 x (5 x 2)

• Associative Property of Multiplication
• Commutative Property of Multiplication
• Identity Property of Multiplication
• Associative Property of Addition

Add these expressions
(3x+15) + (4x+13)

• 7x+ 28
• 35x
• x+2

Subtract these expressions
3(x+5) - (2x+5)

• x-15
• 5x + 20
• x + 10
• x+15