Simplifying Algebraic Expressions

Simplify:
5x - 6x - 8x + 7 

• -9x + 7
• -9x -  7
• 9x + 7 
• 9x - 7

4a + 9 + a

• 5a + 9
• 3a-9
• 3a + 9
• 5a - 9

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

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

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

3x - 5x

• 2x
• 8x
• -2x
• 15x²

-r -10r

• 11r
• -11r
• 9r
• -11

Which number is the coefficient?

6f² - 9

• 6

• f

• 2

• 9

How many terms are in the expression below:
-3c + 7d

• one
• two
• three
• four

Simplify:
14k + 4 + 18 - 16k

• 30k + 14
• 30k - 14
• -2k + 22
• -2k + 14

Simplify:
17m - 4 - 15m + 8

• 2m + 4
• 2m + (-12)
• 2m + 12
• 2m + (-4)