8-3-21_1st_Alg1_combine like terms and distributive property

Simplify:
3(9 + 2d) + 4d 

• 18d+10d
• 18d-10d
• 27+10d
• 37d

Simplify:
4(8x + 1) - 6(1 - 8x)

• -80x - 2
• 80x + 2
• -80x + 2
• 80x - 2

Which of these contains a constant?

• 56t

• 4r - s

• 12e + 7

How many terms are in the expression

3 + 2b + c + 100 + 6b

• 3

• 4

• 5

Combine like terms: 6x - 6y + 14

• 6x - 6y + 14

• 14

• xy + 14

• 0

Simplify the following expression:

2x + 7(x - 5) - 4

• 9x + 20

• 9x + 31

• 9x - 31

• 9x - 39

11y + 3(2y - 4)

• 5y
• 17y - 4
• 17y - 12
• 5y + 12

y + x + y + y + x 

• 2 + 3 
• x + y 
• 2x + 3y 
• 5xy 

What are coefficients?

• The letters in an expression
• The numbers without a letter
• The same as constants
• The number before a letter 

- (2x +3)

• -2x - 3
• 2x +3
• -3 + 2x
• -2x+ 3