1

2

① + ②

①

②

① - ②

x-4y=19

2·① + ②

5x+y=-10

2

3

4

1

line_1: (2 * x) - y = 3
x0 = -1
y0 = -5
P: (x0, y0)
a: (2 * x0) - y0
equation_1: "2x-y= " + (LaTeX[a]) + ""
coordinates: "(" + (LaTeX[x0]) + "," + (LaTeX[y0]) + ")"
line_2: x + (3 * y) = -16
b: x0 + (3 * y0)
equation_2: "x+3y=" + (LaTeX[b]) + ""
text1: "" + (LaTeX[line_1]) + ""
text2: "" + (LaTeX[line_2]) + ""
c = true
d = true
f: (3 * x) + (2 * y) = -13
text3: "" + (LaTeX[f]) + ""
g: x - (4 * y) = 19
h: (5 * x) + y = -10
e = true
i = true
j = true
k = false