Question 339465
Let Michelle's age be M, my age be X.
1.{{{M=3X}}}
.
.
.
Two years ago, I was {{{X-2}}}.
{{{M+X=6(X-2)}}}
{{{M+X=6X-12}}
{{{M=5X-12}}}
Substituting from eq. 1,
{{{3X=5X-12}}}
{{{2X-12=0}}}
{{{2X=12}}}
{{{highlight(X=6)}}}
Then from eq. 1,
{{{M=3(6)}}}
{{{highlight(M=18)}}}