Question 1080484
let the numbers be x and y
{{{4+8x=y}}}...i
 {{{x+y=139}}}...ii
subtitute "y" in eqn ii
 {{{x+4+8x=139}}}
 {{{9x=139-4}}}
 X=15
 {{{4+8x=y}}} From..i
 {{{4+8*15=y=124}}}
The numbers, are 15 and 124.