Question 109476
Right now, 1.{{{M=3W-10}}}
In 5 years, 2.{{{(W+5)=(M+5)/2}}}
Substitute equation 1 in equation 2,
2.{{{(W+5)=(M+5)/2}}}
{{{2(W+5)=(M+5)}}}
{{{2(W+5)=((3W-10)+5)}}}
{{{2W+10=3W-5}}}
{{{W=15}}}
{{{M=3W-10}}}
{{{M=3(15)-10}}}
{{{M=35}}}
Let's check the answers.
Right now, he's 35 and she's 15.'three times the age of my wife minus ten'
In five years, he'll be 40 and she'll be 20.'in five years to come hers will be half mine'
The sum of their ages now is 35+15=50 years