Question

10. Set up equations and solve them to find the unknown number
Munna subtracts thrice the number of notebooks he has from 50, he
finds the result to be 8.​

Answer 1

Let the no. Of notebooks be x
Thrice the notebooks- 3x
50 - 3x = 8
-3x = 8-50
-3x = - 42
Or
3x = 42 ( - - is + )
x = 42/3
x = 14