Operaciones combinadas

1. 12 + (3 + 8) – 4 + 4

2. 17 + 4 – (9 -8) +5

3. 7 + (9 + 5) – 3 x 2 + 4

4. 14 + 3 – ( 4 x 2 ) + 6 – 4 + 5=

5. 14 + (5 – 2) x (2 + 6) – 4 + 5=