x - 2y = -4
2x - y = 1
To solve this system of equations, I used matrices, and got x = 2 and y = 3.
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-2x + 2y = 4 is equivalent to twice -2 + y = 2 which is the equation of a straight line.
2y = 4x + 4y = 2x + 2
X = 2 and Y = 3.
2x - 3y = 4This can't be solved, although you can express each variable in terms of the other.x = (4-3y)/2y = (2x-4)/3
-3x + 2y = 8To get into slope intercept, we must set the equation equal to y2y = 3x + 8y = 3/2x + 8/2y = 3/2x + 4