Look at and study my reply to Astrid several posts below this one.
His question was almost the same as yours.
the teacher accendentally reversed the digits if a test scored and shorted a student 36 points. SHe told the students that the sum of tha digits was 14. what was the actual score on the test?
i need two equations
4 answers
So what would be the two equations? would it be x+y=14 and -x+y=4?
Yes, solve them to get marks of 59 and 95
Ok, thank you so much!