x_1 +

x_2 +

x_1 +

x_2 +

x_3 =

x_3 =

x_1 +

x_2 +

x_3 =

a_1 = 1 (slider from -5 to 5, step 0.5)
a_2 = -3 (slider from -5 to 5, step 0.5)
e_1 = 0 (slider from -5 to 5, step 0.5)
b_1 = 2 (slider from -5 to 5, step 0.5)
b_2 = -1 (slider from -5 to 5, step 0.5)
e_2 = 0 (slider from -5 to 5, step 0.5)
gl1: (a_1 * x) + (a_2 * y) = e_1
g2: (b_1 * x) + (b_2 * y) = e_2
a_3 = 0.5 (slider from -5 to 5, step 0.5)
b_3 = -1 (slider from -5 to 5, step 0.5)
p: (a_1 * x) + (a_2 * y) + (a_3 * z) = e_1
q: (b_1 * x) + (b_2 * y) + (b_3 * z) = e_2
c_1 = 0 (slider from -5 to 5, step 0.5)
c_2 = -2 (slider from -5 to 5, step 0.5)
c_3 = -2.5 (slider from -5 to 5, step 0.5)
e_3 = 0 (slider from -5 to 5, step 0.5)
r: (c_1 * x) + (c_2 * y) + (c_3 * z) = e_3