Simplifying by Combining Like Terms

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify by combining like terms:

x + 3x + 6x + x

• 9x

• 11x

• 2x + 9x

• Can't be simplified

Simplify by combining like terms:

7t - 3t + t - 3t

• 2t

• 8t - 6t

• 14t

• Can't be simplified

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11

• 11x + 11

• 16x² - 5x + 11

• 10x²

• 
• 
• 
• 

Simplify:

11x + 12y + 1y + 10x - 2

• 13y + 21x - 2

• -13y + 21x - 2

• -1y - 2x

• 13x + 21y - 2

(a)  

• F

• G

• H

• J

Nicholas's teacher gave him the final expression "7x+5" and asked him to match this with two correct original expressions given in the list below. Which two original expressions simplify to 7x+5?

• 2x + 1+ 5x + 4

• 10x + 2 - 3x + 3

• x +2 + 4x + 5

• 2x+ 3+ 3x + 4

Simplify:

20y + 19y - 2x + 3x + 2

• 39x + y + 2

• 29y - x + 2

• 39 + 1x

• x + 39y + 2

Nicholas's teacher gave him the final expression "7x+5" and asked him to match this with two correct original expressions given in the list below. Which two original expressions simplify to 7x+5?

• 2x + 1+ 5x + 4

• 10x + 2 - 3x + 3

• x +2 + 4x + 5

• 2x+ 3+ 3x + 4