You can put this solution on YOUR website! the sum of two times Pauls age and Mike's age is 16 . Three times the sum of both of their ages is the same as five times Paul's age.
2x+y=16
{3(x+y)=5x
3x+3y=5x--->-2x+3y=0
add the 2 equations and the x terms are eliminated
so we have 4y=16---->y=4 so mike is 4
to find Pauls age plug into either equation.. 2x+4=16----->2x=12---->x=6 which would be pauls age