Answer:
37
Explanation:
You have to follow rules of Parentheses Exponents Mutiply Divide Add and Subtract. (PEMDAS)
You must go from left to right when you solve a expression
You have to start with multiplying 7*8 because thats the first problem when you start from the left.
It will result in the expression to be changed to 56-3*6+1
Next you do the multpilcation for 3*6 which gives you 18
Your expression will change to 56-18+1
Now you have to add Before you subtract
SO it would be 56-19
Which has an ending result of 37