Equivalent Expressions and Vocabulary

Which of the following is NOT equivalent to 42x + 24?

• 2(21x + 12)

• 3(14x + 8)

• 6(7x + 4)

• 7(6x + 17)

Which expression is equivalent to 3x + 5 + 7x + 2?

• 10x + 7

• 17x

• 17

• 15x + 2

Which of the following is equivalent to 5(2x + 3)?

• 52x + 53

• 7x + 10

• 10x + 15

• 10x + 3

Choose the equivalent expression.

15 + 4(5y + 10)

• 5y + 25

• 20y - 25

• 20y + 40

• 20y + 55

• 2

• 4

• 8

What are equivalent expressions?

• The number that tells how many equal factors there are.

• Expressions which are equal to each other for any values of their variables.

• The result of multiplication.

• To find the value of a mathematical expression.

Which expression is equivalent to 7(3a + 4b)?

• 21a + 28b

• 10a + 11b

• 21a + 4b

• 10a + 28b

Which expression is equivalent to 3x + 5 + 7x + 2?

• 10x + 7

• 17x

• 17

• 15x + 2

Which expression is equivalent to 4(x + 6)?

• 4x + 6

• 4x + 24

• x + 24

• 10x + 24

Which expression is equivalent to 6(2x - 3)?

• 12x - 3

• 8x -9

• 8x - 18

• 12x - 18