Chapter 4 - Section 4.3 - Systems of Linear Equations and Problem Solving - Exercise Set - Page 230: 3a

Thus, the Enterprise is 1,101 ft long, and the Nimitz is 1,092 ft long.

We find: $E+N = 2193$ The second equation is: $E-N=9$ Note, we know that E-N is a positive number since the Enterprise is longer than the Nimitz. We substitute to find: $(N+9)+N=2193$ $N=1,092 ft$ $ E = 1092+9=1,101 ft$ Thus, the Enterprise is 1,101 ft long, and the Nimitz is 1,092 ft long.