Problema Solution
There is a number written on the board. One student increased the number by 23, but another student decreased the number by 1. The first student’s result was 7 times greater than the result of the second student. What is the number written on the board?
Answer provided by our tutors
let 'x' represent the number on the board
7(x+23) = (x-1)
solving for 'x' we have x=-27
the number on the board is -27