Chapter 7 - Algebra

Write an expression for the sum of 4 and y

• 4 + y

• y4

• 4y

Write an expression for 6 taken away from x

• 6 - x

• 6x

• x - 6

Write an expression for the product of 5 and y and z

• 5yz

• 5y + z

• 5 + y + z

Write an expression for the following: 3 is added to a certain number (x) multiplied by 2

• 2x + 3

• 5x

• 3x + 2

Write an expression for the following: a number (y) is multiplied by 5 and then divided by 12

• 5y - 12

3a + 4a

• 34a
• 7a

2x + 4x + 2x

• 24x
• 8x
• 242x

8b - 2b

• 6b
• 6
• 10b

3x + 2y + 3x

• 8xy
• 33x + 2y
• 6x + 2y

8a + 2b

• 8a + 2b
• 10ab
• 6ab