6.7d

Which of the following is equivalent to the following expression?

7(x + 3)

• 7x + 3

• 7 + 3x

• 10 + 3x

• 7x + 21

Simplify this expression:
3(x + 4)

• 3x + 4
• 3x + 12
• 15x
• 3x + 4x

Simplify the Expression:

x + x + x + 3 + 5

• 3x + 8

• x + 3

• 2x + 5

• $x^3$ + 8

13 + 4(2x + 5)

• 13 + 8x

• 8x + 33

• 8x + 20

• 17(2x + 5)

Simplify -6(x - 2)

• -6x + 12

• 6x - 12

• -6x - 2

• -6x + 2

Simplify the expression:
6 + 2(7x - 3) 

• 12 + 7x
• 14x
• 14x + 3
• 9 + 7x

Which two expressions are equivalent?

• (10 - 6) ÷ y and 10 - (6 ÷ y)

• 4 + (3 ⋅ y) and (4 + 3) ⋅ y

• (18 ÷ y) + 10 and 10 + (y ÷ 18)

• 12 - (y ⋅ 2) and 12 - (2 ⋅ y)

Which two expressions are equivalent?

• 6 ⋅ x + 3

  6 ⋅ ( x + 3)

• 8 ⋅ 6 ÷ x

  8 ⋅ x ÷ 6

• 9(6 + x)

  9 ⋅ 6 + 9 ⋅ x

• x + (8 ⋅ 9)

  (x + 8) ⋅ 9

Which expression is equivalent to  $\left(5\cdot x\right)\ +4$  ?

•  $4\ -\left(5\ \cdot\ x\right)$  

•  $4\ +\left(x\ \cdot5\right)$  

•  $5\ +4\ \cdot x$  

•  $5\ \cdot\left(x\ +4\right)$  

Sam writes the expression $a\ +\ 8\ \cdot\frac{4}{5}$  . Which expression is equivalent to Sam's expression?

•  $\left(8\ \cdot\ 4\ \div\ 5\right)\ +\ a$  

•  $8\ +a\ \cdot\ \left(4\ \div\ 5\right)$  

•  $\left(a\ +\ 8\right)\left(4\ \div\ 5\right)$  

• None of the above