Answer: -35
Step-by-step explanation:
We start solving this question by using BODMAS
B- BRACKET
O- OFF
D- DIVISION
M- MULTIPLICATION
A- ADDITION
S- SUBTRACTION
Looking at this question, multiplication comes first
15-1+(12*4)-1=
12*4= 48
15-1+48-1
Then addition comes before subtraction
15-(1+48)-1
15-49-1= -35
