Respuesta :
Answer:
21
Step-by-step explanation:
30 - 9 +3
30 - 12
18
18 - 12=4
12/4 = -3
18 - -3
21
the answer is 21
30 - 9 = 21
21 + 3 = 24
12 divided by 4 = 3
24 - 3 = 21
21 is the answer once again
Answer:
21
Step-by-step explanation:
30 - 9 +3
30 - 12
18
18 - 12=4
12/4 = -3
18 - -3
21
the answer is 21
30 - 9 = 21
21 + 3 = 24
12 divided by 4 = 3
24 - 3 = 21
21 is the answer once again