Author: Batmath

a_{11} = -0.5 (slider from -5 to 5, step 0.1)
a_{21} = -0.2999999999999998 (slider from -5 to 5, step 0.1)
a_{12} = -1.5 (slider from -5 to 5, step 0.1)
a_{22} = 0.7000000000000002 (slider from -5 to 5, step 0.1)
b_1 = 1 (slider from -5 to 5, step 0.1)
b_2 = -0.1999999999999993 (slider from -5 to 5, step 0.1)
text1: "\left\{\begin{array}{rcrcr}" + a_{11} + "x&+&" + a_{12} + "y&=&" + b_1 + "\\" + a_{21} + "x&+&" + a_{22} + "y&=&" + b_2 + "
\end{array}\right."
r: a_{11} x + a_{12} y = b_1
s: a_{21} x + a_{22} y = b_2
A = Intersect(r, s)
text2: "Soluzione del sistema: (" + (x(A)) + "," + (y(A)) + ")."