Which equation is true for the value b = 10? 1. 2(b + 4) = 16 2. 2(b + 2) = 40 3. 3(b – 2) = 24 4. 2(8 + b) = 42 5. 3(b – 4) = 20

When b = 10

1. 2(10 + 4) = 16
     28 ≠ 16                     FALSE

2. 2(10 + 2) = 40
     24 ≠  40                    FALSE

3. 3(10 – 2) = 24
          24 = 24                TRUE

4. 2(8 + 10) = 42
           36 ≠  42               FALSE


5. 3(10 – 4) = 20
        18 ≠  20                   FALSE

Answer is 
3. 3(b – 2) = 24