Respuesta :

Mibo

Step-by-step explanation:

15 + 6 = 21

21 x 7 - 12 ÷ 2

147 - 6

141

Answer:

51

Step-by-step explanation:

15 + 6 x 7 - 12 ÷ 2

PEMDAS says multiply and divide from left to right

15 + 42 - 12 ÷ 2

15 + 42 - 6

Now we add from left to right

57 -6

51