Simplifying, Adding and Subtracting Expressions

Simplify:
5x - 6x - 8x + 7 

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

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

• 7x - 11
• 7x + 11
• -3x + 11
• 3x + 11

Simplify the following expression:
-8x + 4x

• -12x
• -4x
• 4x
• 12x

Simplify:
2x - 5x + 6x + 7 + 14

• 3x + 21
• 3x + 22
• -3x + 21
• -3y + 22

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

• 1x - 9y + 9z
• 1x - 9z - 9y
• -1x - 9z - 9y
• -1x - 9 - 9y

Simplify the following expression:
(5 + 4x) + (2x - 8)

• 13 + 6x
• 6x - 3
• 6x - 13
• 6x + 3

Find the sum (−x + 8) + (−5x − 1).

• −6x + 7
• −4x + 7
• −6x − 8
• −6x + 8

(-m + 3) + (7m – 1)

• -8m + 2
• 6m + 2
• -8m + 4
• -6m + 2

Find the sum:
(7k + 9) + (4k - 3)

• 3k + 6 
• 11k + 6
• -11k + 6
• - 3k + 6

Find the sum (−3x + 7) + (2x − 5).

• −x + 2
• −6x − 35
• −x - 2
• −5x + 2