Simplifying Expressions

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

• 23
• 23v
• 9 + 14v
• 9v + 14

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

• 8a + 2b + 4
• 2a + 2b + 4
• 2a² + 2b + 4
• 4ab + 4

In the expression 3x + 5, the number "3" is called a/an...

• equation
• variable
• coefficient
• congruent

If the expression below is simplified completely, what will be the coefficient of the variable?
w + w + w + w + w + w + w + 15 - 7

• 6
• -8
• 7
• 8

Which expression is equivalent to 
n - 10 + 9n - 3

• -3
• 9n - 3
• n
• 10n - 13

Simplify:
-r - 10r

• 11r
• -11r
• 9r
• -11

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

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

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

• -3x² - 11
• 3x² + 11
• 11 - 3x
• 11 + 3x

Simplify the following expression:
5(5 + 4x)

• 20 + 25x
• 20x + 25
• 9x - 10
• 6x + 3

Simplify the following expression:
5(1 - 8x)

• -33x + 5
• -5 + 40x
• 47x + 5
• 5 - 40x