Question 1096636
<br>Let x = the nephew's age now
Then 3x = John's age now
Then x-4 = the nephew's age 4 years ago
and 3x-4 = john's age 4 years ago<br>
Then write and solve the equation that says John's age 4 years ago was 4 times his nephew's age 4 years ago:
{{{3x-4 = 4(x-4)}}}<br>
You can finish from there....