Adding and Subtracting Expressions

(7a + 4) - (9a + 2)

• -2a + 6

• 2a + 6

• -2a + 2

• 2a + 2

(-4a + 5b – 7) – (5a + 3b)

• -9a + 2b - 7

• -9a + 8b - 7

• -9a - 8b - 7

• a + 8b - 7

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

• 23

• 23v

• 9 + 14v

• 9v + 14

Add the expression 5x + 2y to 9x + y

• 14x + 2y

• 14x + 3y

• 18xy

• 45x + 2y

If a = -3x - 4y and b = 9x + y, what is a + b?

• -12x - 5y

• 6x + 3y

• 6x - 3y

• 3xy

What is 2a + 3b + 5c increased by a + b - c

• 3a + 4b + 6c

• 3a + 4b + 4c

• 2a + 3b + 5c

• 11abc

What is the sum of -4p - 3v and 3p - v?

• -7p - 2v

• -1p + 4v

• -5pv

• -p - 4v

Jack has a certain number of erasers, e. Mari has three times as many as Jack and one more. Charlie has twice as many as Jack minus five. What is the total amount of erasers for all three people?

• 5e - 4 erasers

• 6e + 6 erasers

• 6e - 4 erasers

• 5e + 6 erasers

Find b - a if a = 4c + 6 and b = -5c - 1.

• -9c - 7

• -9c + 5

• 9c - 5

• 9c + 7

Simplify the expression: 3x + 2y - 5x + 4y

• -2x + 6y

• -2x - 2y

• 5x + 6y

• 8xy - 5