Casio FX-9750G Manual - Halaman 4

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Halaman Cetak
Casio FX-9750G Manual
7 - 2
Linear Equations with Two to Six Unknowns
k k k k k Solving Linear Equations with Three Unknowns
Example
While in the Linear Equation Mode (SIML), press 2 (3), because the linear equa-
tions being solved have three unknowns.
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:
coefficient
coefficient
coefficient
• You can input fractions and value memory contents as coefficients.
After inputting the coefficients, solve the equations.
To solve the following linear equations for
x
y
z
4
+
– 2
= –1
x
y
z
+ 6
+ 3
= 1
x
y
z
–5
+ 4
+
= –7
2(3)
Coefficient input cells
ewbw-cw
-bw
bwgwdwbw
-fwewbw
-hw
a
b
coefficient
1
1
a
b
coefficient
2
2
a
b
coefficient
3
3
1(SOLV)
Value being input into highlighted cell
1
c
coefficient
coefficient
1
c
coefficient
coefficient
2
c
coefficient
coefficient
3
1
Highlighted solution cell value
x
y
z
,
, and
:
2 3 4 5 6
d
1
d
2
d
3
2 3 4 5 6
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