You can put this solution on YOUR website! J = Jessica's age
N = Nadia's age
Jessica is 4 years younger than Nadia:
J = N - 4
Put all the variables on the left side of the equation:
J - N = -4
8 years ago, Nadia was 3 times as old as Jessica:
N - 8 = 3(J - 8)
Simplify above:
N - 8 = 3J - 24
Put all the variables on the left side of the equation:
-3J + N = -16
List both equations:
J - N = -4
-3J + N = -16
Add both equations together:
-2J = -20
Solve for J:
J = 10
Substitute J = 10 into any of the equations to find N:
J = N - 4
10 = N - 4
N = 14
J = Jessica's age = 10
N = Nadia's age = 14
