Assume there are two linear equations:

$a_1 x + b_1 y +c_1=0$

$a_2 x + b_2 y +c_2=0$

The solution is $x=frac{b1*c2-c1*b2}{a1*b2-a2*b1}$, $y=frac{a2*c1-a1*c2}{a1*b2-a2*b1}$

You can drag the

**circle** to change the slope of the linear equation or drag the square to change the offset of the linear equations.

There is a similar applet:

Solving linear equations Full screen applet or

Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list**Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop.** This work is licensed under a

Creative Commons Attribution 2.5 Taiwan License
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