Adding and Subtracting Linear Expressions

What is the difference of (7Y + 5) - (4Y - 3)?

• 3Y + 2

• 3Y - 2

• 11Y + 8

• 11Y - 8

What is the definition of a linear expression?

• An algebraic expression with a variable exponent of 1

• An algebraic expression with a variable exponent of 2

• An algebraic expression with a variable exponent of 3

• An algebraic expression with a constant exponent

Find the sum:

(7k - 9) + (-4k + 3)

• 3k + 6

• 3k - 6

• -11k + 12

• - 3k - 6

Find the sum (−x + 8) + (−5x − 1).

• −6x + 7

• −4x + 7

• −6x − 8

• −6x + 8

Find the sum:

2(x + 3) + 3(3x - 2)

Hint: Use Distributive Property, then combine like terms.

• 11x

• 11x - 12

• 11x + 12

• 0

Find the sum:  (3w - 8) + (-6w - 4)

• -3w + 12

• 9w + 12

• -3w - 12

• -9w - 12

Write an expression in simplest form for the perimeter of the figure.

• (a) + (2a + 3) + (3a - 1)

• 5a + 2

• 6a + 2

• 7a

(5x - 6) - (x + 2)

• 4x - 8

• 4x - 4

• 4x + 4

(7x - 4) - (3x - 2)

• 4x - 2

• 4x + 2

• 4x - 6

• 4x + 6

(10x + 2) - (8x - 4)

• 2x - 2

• 2x + 6

• 18x + 6

• 18x - 2