Casio FX-9750G PLUS User's Manual & Technical Reference page 130

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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:
a → coefficient
coefficient
1
a → coefficient
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
b → coefficient
1
·
·
·
·
b → coefficient
n
x y z
, , and
Coefficient input cells
1 2 3 4 5 6
c → coefficient d →
1 1
c → coefficient d n
(
n n
1 2 3 4 5 6
Highlighted solution cell value
:
= 2 to 6)