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Step & Key Operation Display
EL-9900 Graphing Calculator
Notes
Access the Tool menu. Select the
number of variables.
Enter the system of equations.
Using the system function, it
is possible to solve simulta-
neous linear equations. Sys-
tems up to six variables and
six equations can be solved.
Solve the system.
2-1
2-2
2-3
7-1
A system of equations can be solved easily by using the Calculate feature
or Tool feature.
x = 0.75
y = -2.75
2nd F
TOOL
B
EXE2nd F
2
5
11
31 5
ENTER
ENTER ENTER
ENTER ENTER
ENTER
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