ADDITIONAL ASSIGNMENT OPERATOR
Consider the following statement,
numbers[loop] += 7;
This assignment += is equivalent to add equals. It takes the value of numbers[loop], adds it by 7, then assigns the value to numbers[loop]. In other words it is the same as,
numbers[loop] = numbers[loop] + 7;
CLASS EXERCISE C17
What is the outcome of the following, assuming time=2, a=3, b=4,
c=5
time -= 5; a *= b + c;