Question 893844
{{{I=M/2}}}
{{{D=M+5}}}
{{{I+D+M=100}}}
Substitute,
{{{M/2+(M+5)+M=100}}}
{{{M+2(M+5)+2M=200}}}
{{{M+2M+10+2M=200}}}
{{{5M=190}}}
{{{M=38}}}
Then,
{{{I=38/2}}}
{{{I=19}}}
and
{{{D=38+5}}}
{{{D=43}}}