Question

fifteen less than 4 times a number is 9. find the number.

Answer 1

let the no.be x;
then;
4x-15=9
or,4x=9+15
or,x=24/4
therefore,x=6

Answer 2

let the number be x.
4x-15=9
4x=9+15
4x=24
x=24/4
x=6
answer is 6.