Casio CFX-9850GC PLUS Manuel de calcul - Page 4

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Casio CFX-9850GC PLUS Manuel de calcul
7 - 2
Linear Equations with Two to Six Unknowns
k k k k k Solving Linear Equations with Three Unknowns
1. While in the Linear Equation Mode (SIML), press 2 (3), because the linear
2. Input each coefficient.
3. After inputting the coefficients, solve the equations.
102
Example
To solve the following linear equations for
x
y
4
+
x
y
+ 6
x
y
–5
+ 4
equations being solved have three unknowns.
ewbw-cw-bw
bwgwdwbw
-fwewbw-hw
Each time you press w, the input value is registered in the highlighted cell.
Each press of w inputs values in the following sequence:
→ coefficient
a
coefficient
1
→ coefficient
a
coefficient
n
• You can input fractions and value memory contents as coefficients.
1(SOLV)
z
– 2
= –1
z
+ 3
= 1
z
+
= –7
Value being input into highlighted cell
→ coefficient
b
1
·
·
·
·
→ coefficient
b
n
x
y
z
,
, and
Coefficient input cells
1
2 3 4 5 6
→ coefficient
→
c
d
1
1
→ coefficient
c
d
n
(
n
n
1
2 3 4 5 6
Highlighted solution cell value
:
= 2 to 6)