The tutor shows how to easily solve a two-variable linear system with the amazing Sharp el-520w.

Let’s imagine you’re posed the following problem:

Solve the linear system:

(2/3)x – (1/5)y = 2

-4x + 3y = 6

With the Sharp el-520w, solving it couldn’t be easier:

1. MODE 2 0
2. It asks for a1: key in 2÷3, then =. Next, it asks for b1: key in -1÷5, then =. For c1, key in 2, then =. (Note these are the numbers from the first equation.)
3. Now it starts asking for the second row numbers. Key them in the same manner as you just did for the first row.
4. After you key in c2 and press =, the screen should say x=6. Press = again to reveal y=10.
5. To review the inputs, and the answers, you can press = repeatedly.
6. To return to normal mode, press MODE, then 0.

Source:

Sharp el-520w Operation Manual.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.