Solve 4x - y = 6

2x - y/2 = 4

Answer: no solution

so useing the first equation:

y=4x-6

substituting into the second equation we have

2x - (4x-6) / 2=4

2x-2x+3=4

3=4 <- - a false statement

which means there are no solutions

we can see that this is the case by multiplying the second equation by 2 and observing that it has the same coefficients as the first equation. this means that the lines have the same slope, and are therefore parallel.

There is no solution to this problem