Respuesta :

Answer:

63

Step-by-step explanation:

2+1= 3

15-3= 12

12 x 3 = 36

99 - 36

= 63

noorjahanhossain13

Steps

99-3(15-(2+1))

3(15-(2+1))=36

add the numbers: 2+1=3

=3(15-3)

Subtract the numbers: 15-3=12

=3 times 12

multiply the numbers: 3 times 12=36

=36

=99-36

subtract the numbers: 99-36=63

=63

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