Casio fx-9860GII - 1.4 Solving simultaneous linear equations in two unknowns

Getting Started with the fx-9860GII
4. To change the displayed number of decimal places, enter the SET UP menu by pressing
Lp. N to Display, select q (Fix) and enter the desired amount of decimal places
followed by l. For this example, 3 decimal places are used.
Note: Every icon’s SET UP menu is accessed in the same way.
• LpNNNNNNNNNNNq3ldlx
From the RUN menu, many calculations can be entered by selecting i. For example:
hyperbolic, probability/distribution, numeric (including differential and integration), conversion,
engineering, complex number and binary, octal, decimal and hexadecimal calculations.
5. To calculate the possible number of different arrangements using 4 items selected from among
10 items, enter the following from the RUN home screen:
• iue10w4l
6. To calculate -10
3
+ 2 , enter the following from the RUN home screen:
• iewn10^3$+2l
Calculations can be performed with complex numbers and answers can be displayed in
a+bi form.
RUN
4