Unit 3 TEST Review

(3x + 5) + (2x + 3)

• 6x + 15
• 6x + 8
• 5x + 8
• 5x + 15

Which expressions are equivalent to x+x+x+2?

A. 3x+2

B. 3+2x

C. 3(x+2)

D. 2(x+1)+x

• A and B

• A and D

• B and C

• B and D

(3d - 5) + (d + 3)

• 4d + 8

• 2d + 8

• 2d - 2

• 4d - 2

(8 - u) - (5u + 1)

• 6u + 7

• -4u + 7

• -6u + 7

• 4u - 7

Which expressions are equivalent to 4(4a+5)?

A. 16a+5

B. 16a+20

C. 12a+20+4a

D. 2(8a+10)

• A, B, C

• B, C, D

• A, C, D

(6x + 9) - (4x + 6)

• 10x + 15

• 2x + 15

• 10x + 3

• 2x + 3

Simplify.

2x + x - 4y

• 2x+x-4y

• 4x+4y

• 3x-4y

• 3x+4y

Simplify.

2(x+3)

• 2x-6

• 2x+3

• 2x+6

• 2x-3

Solve.

-5a -b

a= -6 and b= 3

• 33

• 30

• 27

• 24

What is the value of xy + 2z, when x = -2, y = 4 and z = -5.

• -2

• 28

• 18

• -18