Expression and Multiplication

-r - 10r

• 11r

• -11r

• 9r

• -11

Simplify the expression: 2x + 1 + 7x 

• 10x

• 10

• 9x + 1

• 9 + 1x

Simplify the expression: 7v + 2 + 12 + 2v

• 23

• 23v

• 9 + 14v

• 9v + 14

Simplify the following expression:
3 + 5x + 8 - 2x

• -3x² - 11

• 3x² + 11

• 11 - 3x

• 11 + 3x

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The product of seven and j..

• 7j

• j+3

• j-3

• j/3

Rewrite the following expression correctly.
4x + 3 + 3x + 8 + 4

• 12 + 24 + 4

• 15 + 7x

• 10x + 12

• 7x + 15

3x-5x

• 2x

• 8x

• -2x

• 15x²

Simplify the expression: 3x + 2x

• 5x

• x

• 6x

• 5