Question

\(\dfrac{3}{x+5}=15\%\)

Answer 1

`3 / [ x + 5 ] = 15%`

`3 / [ x + 5 ] = 3 / 20`

`x + 5 = 20`

`x = 20 - 5`

`x = 15`

Answer 2

3/x+5 = 15%

= 100 . 3 = ( x + 5 ) . 15

300 = ( x + 5 ) . 15

300 = 15x + 75

15x + 75 = 300

15x = 300 - 75

15x = 225

x = 225 : 15

x = 15.