Question 1078047
1.{{{C+E=65}}}
Ten years ago,
{{{C-10=2(E-10)}}}
{{{C-10=2E-20}}}
2.{{{C-2E=-10}}}
Subtract eq. 2 from eq. 1,
{{{C+E-C+2E=65-(-10)}}}
{{{3E=75}}}
Solve for E then use either equation to solve for C.