Question

if 2o is added to the eight time of a certain number , is the result is 10 less than ten times the numbre , find the number.

Answer 1

let the number be =x
A/q
8x + 20= 10x -10
8x- 10x = -10 - 20
-2 x = -30
2x = 30
x= 30 / 2
x = 15

Answer 2

Let the no. be x............... ATQ.... 8x+20= 10x-10...............20+10=10x-8x......... 30= 2x.........30/2=x.....15=x..... or x=15.........