Sharp EL9900 manual 1Access the Tool menu. Select the number of variables

EL-9900 Graphing Calculator

Step & Key Operation Display Notes

2-1Access the Tool menu. Select the number of variables.

2nd F TOOL B 2

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.

2-2Enter the system of equations.

5 ENTER 1 ENTER 1 ENTER

(-) 3 ENTER 1 ENTER (-)

ENTER

5

2-3Solve the system.	x = 0.75
	y = - 2.75

2nd F EXE

A system of equations can be solved easily by using the Calculate feature or Tool feature.

7-1