14- + 9 =15 12- + 7=16 18- +3 =12 11-(13- )=7 15-(4+ )=6 7+(14- )=13

Question

14- + 9 =15
12- + 7=16
18- +3 =12
11-(13- )=7
15-(4+ )=6
7+(14- )=13

Answer 1

14-8+9=15
12-3+7=16
18-9+3=12
11-(13-9)=7
15-(4+5)=6
7+(14-8)=13