
Section 4.2
... Substituting into either equation (4) or (5) we find that x = 1. Now we have x = 1 and y = 2. To find the value for z, we use any of the three original equations and substitute to find the third number z. Copyright © 2015, 2011, 2007 Pearson Education, Inc. ...
... Substituting into either equation (4) or (5) we find that x = 1. Now we have x = 1 and y = 2. To find the value for z, we use any of the three original equations and substitute to find the third number z. Copyright © 2015, 2011, 2007 Pearson Education, Inc. ...