Algebraic Expressions: Combining Like Terms

y + x + y + y + x 

• 2 + 3 

• x + y 

• 2x + 3y 

• 5xy 

2r + 2 + 5r - 2 + r 

• 8r 

• 8r - 4 

• 12r 

• 7r + 4 + r 

3 + 12c - 4c 

• 16c + 3 

• 8c + 3 

• 5c 

• 8c 

5p + 4h - 2
Which are the variables? 

• 5p, 4h, 2

• 2

• p, h

• 5, 4

Simplify:
5x - 6x - 8x + 7 

• -9x + 7

• -9x -  7

• 9x + 7 

• 9x - 7

Simplify:
-1x + y - z + 10z + 2x - 10y

• 1x - 9y + 9z

• 1x - 9z - 9y

• -1x - 9z - 9y

• -1x - 9 - 9y

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

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

-r -10r

• 11r

• -11r

• 9r

• -11

How many terms are in the expression below:
3x - 6 + 4b + 5 + 7 - 2x

• five

• eight

• six

• nine

Which number is the coefficient?

6f² - 9

• 6

• f

• 2

• 9