Question 314330
x=Carol now
x-7 = Paul now


x+3= Carol in 3 years
x-7+3=x-4= paul in 3 years


x+3=2(x-4)

x+3=2x-8
-x=-11
x=11   Carol now
x-7= 4   Paul now


Check:  In 3 years, Carole will be 14 and Paul will be 7.  Carol will indeed be twice as old as Paul.


Dr. Robert J. Rapalje, Retired