Linear Equations With Two To Six Unknowns - Casio CFX-9970G User Manual

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Linear Equations with Two to Six Unknowns

k k k k k Solving Linear Equations with Three Unknowns
Example
1. While in the Linear Equation Mode (SIML), press 2 (3), because the linear
equations being solved have three unknowns.
2. Input each coefficient.
Each time you press w, the input value is registered in the highlighted cell.
Each press of w inputs values in the following sequence:
• You can input fractions and value memory contents as coefficients.
3. After inputting the coefficients, solve the equations.
To solve the following linear equations for
x y z
4 + – 2
x y z
+ 6 + 3
x y z
–5 + 4 +
ewbw-cw-bw
bwgwdwbw
-fwewbw-hw
a
coefficient ! coefficient
1
a
coefficient ! coefficient
n
1(SOLV)
= –1
= 1
= –7
Value being input into highlighted cell
b c
! coefficient
1
·
·
·
·
b c
! coefficient
n
x y z
, , and :
Coefficient input cells
1 2 3 4 5 6
d
! coefficient
!
1 1
d n
! coefficient ( = 2 to 6)
n n
1 2 3 4 5 6
Highlighted solution cell value
102