First thing to do, is follow the order of operations: Multiplications and divisions, then subtractions and addition.
738+345-56=n
You first start by calculating the Multiplications, which are in this equation 738=266 and 345=135.
So 738+345-56 = 266+135-56 = n
Then, you move to the additions and subtractions:
266 + 135 - 56 = 345.
So n=345.
Hope this Helps! :)
