Use the substitution method to solve the following system of equations:

4x - y = 3

7x - 9y = - 2

Using the first equation:

4x = y + 3 - - - > y = 4x - 3

We then substitute this into the second equation:

7x - 9 (4x-3) = - 2 - - - > 7x - 9x + 27 = - 2 - - - > - 2x = - 29 - - - > x = 14.5