Question 1209586
<pre>
             Age now          4 years ago

Lema          2x              2x-4

Mia            x               x-4

TOTAL                          24
</pre>
{{{(2x-4)+(x-4)=24}}}

-

{{{2x-4+x-4=24}}}

{{{3x-8=24}}}

{{{3x=24+8}}}

{{{3x=32}}}

{{{x=32/3}}}

{{{x=30/3+2/3}}}

{{{x=10&2/3}}}-this is about 10 years 8 months.


Lena is 2x so  {{{2(10+2/3)=20+4/3=21&1/3}}}-which is 21 years 4 months.