2x - 6y = 8
-x + 3y = 10
Add x to both sides in the 2nd equation.
x + 10 = 3y
Subtract 10 from both sides.
x = 3y - 10
Now that we have a value for x, we can plug it into the first equation to solve for y.
2(3y - 10) - 6y = 8
Distributive property.
6y - 20 - 6y = 8
Simplify.
-20 ≠ 8
Because there are no solutions, the two lines are parallel and never cross,.