Suppose you try to solve a system of linear equations using substitution and get this result.

1. x=-2
2. y=12
3. 6=x
4. -8=-8
5. 7=y
8. 5=3

To solve a system of linear equations using substitution, you substitute the values of one variable from one equation into the other equation. Let's take a look at the given equations:

1. x = -2
2. y = 12
3. 6 = x
4. -8 = -8
5. 7 = y
8. 5 = 3

There seems to be some confusion in the given equations. Equations 3, 4, and 8 don't provide any useful information in solving the system of equations.

However, equations 1, 2, 5, and 6 are solvable, so we can find the values of x and y:

From equation 1, we have x = -2.
From equation 2, we have y = 12.

So the solution to the system of equations is x = -2 and y = 12.