Question 1048794
Smaller number: x
Larger number: y
Then {{{y = 18+x}}}
Also {{{5*y = 4*x+100}}} so, by substituting y from the first equation, we get:

{{{5*(18+x) = 4*x+100}}}
{{{5*x+90 = 4*x+100}}}
{{{x = 10}}} so larger number y = 28