Casio CFX-9850G PLUS Calculations Manual page 4

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)