Make the given changes in the indicated examples of this section and then solve the resulting problems.

In Example 7, change 3 to 4 in the first equation and then find if there is any change in the conclusion that is drawn.

Data from example 7

In solving the system of equations

4x = 2y + 3−y + 2x − 2 = 0 

first note that the equations are not in the correct form. Therefore, writing them in the form of Eqs. (5.4), we have

4x − 2y = 3

2x − y = 2

Now, multiply the second equation by 2 and subtract to get