Modifying Equations to Show Equivalent

Which expression is equivalent to a+a+a?

• a³

• 3a

• 3^a

• 3+a

Which expression is equivalent to 3 (x + 6)?

• 3 + 3 + x + 6

• 3x + 6

• 3x + 18

• (3 + x) + (3 x 6)

Use the distributive property to find an equivalent expression: 5(2f + 4)

• 10f + 4

• 10f + 9

• 10f + 20

• 30f

Which expression is equivalent to 8(5 - 2a)?

• (8 + 5) - (8 + 2a)

• (8 x 5) + (8 x 2a)

• 40 - 16a

• (8 x 5) - (8 x 2a)

Which equation has the same solution as 6 – 3 x = 5 x – 18?

• 4 x – 6 = 2 x – 12

• 10 – 7 x = 28 – 13 x

• 9 + 4 x = 8 x + 3

Which of the following is equivalent to 7x + y = −6

Which of the following is equivalent to 5x + 7y = −7

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 one is equivalent to -5(a - 6)?

• -5b - 30

• -5a + 30

• (-5 x a) - (-5 x 6)

Which two expressions are equivalent? (only one answer)

• 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