Set up the equation and solve it to find the unknown number in the following case:
Ibenhal thinks of a number. If she adds 19 to it divides the sum by 5, she will get 8.
Let the number be n.
First she adds 19 to the number, (n+19)
and, then divide the sum by 5 i.e, n+195, the result will be equal to 8.
According to the question,
⇒n+195×5=8×5 [Multiplying both sides by 5]
⇒n+19−19=40−19 [Subtracting 19 from both sides]
Hence, Ibenhal thought the number 21.