Adding and Subtracting Linear Expressions

Find the sum (−x + 8) + (−5x − 1).

• −6x + 7

• −4x + 7

• −6x − 8

• −6x + 8

(3x + 5) + (2x + 1) 

• 5x + 5

• 5x + 6

• x + 4

• 6x + 5

(-m + 3) + (7m – 1)

• -8m + 2

• 6m + 2

• -8m + 4

• -6m + 2

Find the sum:  (3d - 5) + (d + 3)

• 4d + 8

• 2d + 8

• 2d - 2

• 4d - 2

Find the sum:  (3w - 8) + (-6w - 4)

• -3w + 12

• 9w + 12

• -3w - 12

• -9w - 12

Find the sum:  (n + 7) + (n - 14)

• n + 7

• 2n + 7

• 2n - 7

• n - 7

Find the sum:  (6 - k) + (4k + 1)

• 5k + 7

• 3k + 7

• 5k + 5

• 3k + 5

Simplify the expression: -5(x + 4)

• 5x + 4

• -5x + 4

• -5x - 20

• -5x + 20

Write a linear expression for the perimeter of the figure. Then find the perimeter of the figure if x = 3.

• 6x − 8; 10 yd

• 10x − 6; 24 yd

• 16x − 8; 40 yd

• 14x − 8; 34 yd

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

• 23

• 23v

• 9 + 14v

• 9v + 14