Question

21 less than 4 times a number is 11 find the number

Answer 1

let the number be x
.:four times a number is 4x
.:21 less than 4 times a number=4x-21

.:4x-21=11
.:4x=11+21
.:4x=32
.:x=8. .....dividing by 4

SOLUTION
the required number is 8