equivalent expressions

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

Which expression is equivalent to 3a² + 6a + 5a²?

• 14a²
• 14a
• 8a² + 6a
• 3a² + 11a

Which expression is equivalent to 6y + 22y + y?

• 28y + 1
• 29y
• 22y + 7
• 29

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

• 21a + 28b
• 10a + 11b
• 21a + 4b
• 10a + 28b

Which expression is equivalent to z + z² + 1?

• 3z
• 1 + z + z²
• 2z + 1
• 2z² + 1

Which expression is equivalent to 6(3y - 2y + 7)?

• 18y + 7
• 21y - 14y + 7
• 18y + 42
• 6y + 42

Which expression is equivalent to 15x + 10 - 6x - 1?

• 9x + 9
• 18x
• 15x - 3
• 9x + 11

Which expression is equivalent to 12(5 - 4x)?

• 12x
• 17 - 16x
• 60 - 48x
• 60 - 4x