How can u solve systems of equations and inequaliities? -3x-y=-10
4x-4y=8
Im looking for the graph.
Many ways to do this, this is one:
[ -3x-y=-10 ] (I)
+ [ 4x-4y=8 ] (II)
= [x -5y = -2] (III)
x = 5y-2 (IV)
substitute x with 5y-2 in the second equation:
4(5y-2) -4y =8
20y -8 -4y =8
16y =16
y=1
substitute y with 1 in (IV):
x= 5*1 -2
x= 3
