Algebraic Expressions

k friends evenly divided up a 12 slice pizza. One of the friends, Harris, ate 1 fewer slice than he was given. How many slices of pizza did Harris eat?
Write your answer as an expression.

• 12/k -1 

• k - 1 + 12

• k/12 + 1

• 1 + 12 + k

−8(−5b + 7) + 5b

• 45b − 56

• -35b + 7

• -45b + 56

• 10b - 1

−7(k − 8) + 2k

• -5k - 56

• -5k - 8

• 10k - 7

• −5k + 56

b − 3 + 6 − 2b

• -b + 3

• 3b + 9

• b + 3

• -3b + 3

9 + 5r − 9r

• 4r + 9

• -4r - 9

• -4r + 9

• 5r

−4p − (1 − 6 p)

• -10p

• 2p − 1

• -10p -1

• -2p - 4

4 − 5(−4n + 3)

• -9n + 7

• 20n - 11

• -20n + 19

• 20n + 19

1 + 7(1 − 3b)

• -3b + 9

• 21b + 8

• -3b + 7

• -21b + 8

3 − 8(7 − 5n)

• -5n + 59

• -40n +31

• 40n - 53

• -35n -5

−6(a + 8)

• -6a + 8

• -6a - 48

• -6a + 2

• 6a + 48