on friday the temperature was 82 f the temperature changed by - 2 on saturday, and then it changed by 5 on sunday, what was the temperature on sunday, explain how the temperature changed using integers

It would be 83 degrees fahrenheit because you subtract - 2 from 82, which equals 80. The reason why you subtract is because - 2 is a negative number. Then you add 5 to 80, equals 83. The reason why you add is because 5 is a positive number.