Chapter 10 - Section 10.2 - Systems of Linear Equations in Several Variables - 10.2 Exercises - Page 697: 11

(5,2,-.5)

Taking the last equation, we multiply both sides by -1/2 to get z=-1/2. Substituting this into the 2nd equation, we get $y -2 = 0$ or $y=2$. Plugging both variables into the first equation we get $2x-2-3=5$. Thus x is 5.