Casio fx-9750G Equation Calculations - Manual (Page 4)

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