Question 1092061
Five years ago,
{{{D-5=3(M-5)}}}
{{{D-5=3M-15}}}
1.{{{D-3M=-10}}}
Five years from now,
{{{D+5=2(M+5)}}}
{{{D+5=2M+10}}}
2.{{{D-2M=5}}}
Subtract 1 from 2,
{{{D-2M-D+3M=5-(-10)}}}
{{{M=15}}}
Use either equation to solve for D.