Evaluating expressions

Simplify and evaluate 6d - 2d when d = -2

• 4d; 8

• -4d; 8

• 8d; -8

• 4d; -8

Evaluate -5 - 15/n when n = 5

• -8

• 8

• 2

• -2

Simplify and evaluate 2(-5b + 9) - 2b when b = -3

• -12b +18; 54

• -8b + 18; 42

• -12b + 18; -54

• -8b + 18; =42

Evaluate 5 + 7z + 4 when z = -1

• 80

• -2

• -63

• 2

5f - f when f = -4

• -16

• 16

• -20

• 20

Evaluate -2x + 5y when x = -2 and y = 5

• -29

• 29

• 33

• -33

Evaluate 4s - 5h when s = -2 and h = -1

• 9

• -9

• 3

• -3

Evaluate s - t when s = 11 and t = -5

• 6

• -6

• 16

• -16

Evaluate km when k = -1 and m = -10

• -101

• 10

• -10

• 101

Simplify and Evaluate -2x(5x) when x = -2

• 10x; -20

• -10x; 20

• -10x²; -40

• -10x²; 40