Substitution Evaluate

5(v + 1)
v = 4

• 26

• 12

• 11

• 25

Work out the value of the expression when x = 3, y = – 2 and z = – 4.

• -3

• 4

• 3

• -4

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9

• 38

• -38

• -9

5m + 9n if m = -7 and n = 4

• 71

• 1

• -1

• -71

Simplify if w = -4

-7w² + 2w

• 104

• -64

• -120

• 120

Evaluate: 10 - (3h + 2) for h = 3

Mathematical Equivalence

ON

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a² + c²   

• 22

• 34

• 68

• 43

Evaluate ab - cd when a = 3, b = -4, c =1 and d = -1

• -11

• 11

• 10

• 13

n - y; for n=8 and y=6