Ksolving linear equations with three unknowns – Casio fx-9750G PLUS User Manual
Page 130
102
7 - 2
Linear Equations with Two to Six Unknowns
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
1. While in the Linear Equation Mode (SIML), press 2 (3), because the linear
equations being solved have three unknowns.
2. 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
n
→ coefficient
b
n
→ coefficient
c
n
→ coefficient
d
n
(
n
= 2 to 6)
• You can input fractions and value memory contents as coefficients.
3. After inputting the coefficients, solve the equations.
1
(SOLV)
Coefficient input cells
Value being input into highlighted cell
1
2 3 4 5 6
1
2 3 4 5 6
·
·
·
·
Highlighted solution cell value
- CFX-9850G PLUS CFX-9850GB PLUS CFX-9850GC PLUS CFX-9950GB PLUS CFX-9970G Numerical Calculations CFX-9970G Basic Operation CFX-9970G Complex Numbers CFX-9970G Equation Calculations CFX-9970G Graph Solve CFX-9970G Matrix Calculations CFX-9970G Sketch Function CFX-9970G Graph-to-Table CFX-9970G Graphing CFX-9970G Dual Graph CFX-9850GB CFX-9970G Implicit Function Graphs CFX-9970G Dynamic Graph CFX-9970G Table & Graph CFX-9970G Recursion Table and Graph CFX-9970G List Function CFX-9970G Financial Calculations CFX-9970G Data Communications CFX-9970G Program Library CFX-9970G Programming CFX-9970G Statistical Graphs and Calculations CFX-9850G PLUS Getting Acquainted CFX-9850GB PLUS Getting Acquainted CFX-9850GC PLUS Getting Acquainted CFX-9950GB PLUS Getting Acquainted fx-9750G PLUS Getting Acquainted CFX-9850G PLUS Basic Operation CFX-9850GB PLUS Basic Operation CFX-9850GC PLUS Basic Operation CFX-9950GB PLUS Basic Operation fx-9750G PLUS Basic Operation CFX-9850G PLUS Manual Calculations CFX-9850GB PLUS Manual Calculations CFX-9850GC PLUS Manual Calculations CFX-9950GB PLUS Manual Calculations fx-9750G PLUS Manual Calculations CFX-9850G PLUS Complex Numbers CFX-9850GB PLUS Complex Numbers CFX-9850GC PLUS Complex Numbers CFX-9950GB PLUS Complex Numbers fx-9750G PLUS Complex Numbers CFX-9850G PLUS Numerical Calculations CFX-9850GB PLUS Numerical Calculations CFX-9850GC PLUS Numerical Calculations CFX-9950GB PLUS Numerical Calculations fx-9750G PLUS Numerical Calculations CFX-9850G PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850GB PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850GC PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9950GB PLUS Binary, Octal, Decimal, and Hexadecimal Calculations fx-9750G PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850G PLUS Equation Calculations CFX-9850GB PLUS Equation Calculations CFX-9850GC PLUS Equation Calculations CFX-9950GB PLUS Equation Calculations fx-9750G PLUS Equation Calculations CFX-9850G PLUS Matrix Calculations CFX-9850GB PLUS Matrix Calculations CFX-9850GC PLUS Matrix Calculations CFX-9950GB PLUS Matrix Calculations fx-9750G PLUS Matrix Calculations CFX-9850G PLUS Graph Solve CFX-9850GB PLUS Graph Solve CFX-9850GC PLUS Graph Solve CFX-9950GB PLUS Graph Solve fx-9750G PLUS Graph Solve CFX-9850G PLUS Graphing CFX-9850GB PLUS Graphing CFX-9850GC PLUS Graphing CFX-9950GB PLUS Graphing fx-9750G PLUS Graphing CFX-9850G PLUS Appendix CFX-9850GB PLUS Appendix CFX-9850GC PLUS Appendix CFX-9950GB PLUS Appendix fx-9750G PLUS Appendix CFX-9850G PLUS Graph-to-Table CFX-9850GB PLUS Graph-to-Table CFX-9850GC PLUS Graph-to-Table CFX-9950GB PLUS Graph-to-Table fx-9750G PLUS Graph-to-Table CFX-9850G PLUS Sketch Function CFX-9850GB PLUS Sketch Function CFX-9850GC PLUS Sketch Function CFX-9950GB PLUS Sketch Function fx-9750G PLUS Sketch Function CFX-9850G PLUS Dynamic Graph CFX-9850GB PLUS Dynamic Graph CFX-9850GC PLUS Dynamic Graph CFX-9950GB PLUS Dynamic Graph fx-9750G PLUS Dynamic Graph CFX-9850G PLUS Table & Graph CFX-9850GB PLUS Table & Graph CFX-9850GC PLUS Table & Graph CFX-9950GB PLUS Table & Graph fx-9750G PLUS Table & Graph CFX-9850G PLUS Implicit Function Graphs CFX-9850GB PLUS Implicit Function Graphs CFX-9850GC PLUS Implicit Function Graphs CFX-9950GB PLUS Implicit Function Graphs fx-9750G PLUS Implicit Function Graphs CFX-9850G PLUS Recursion Table and Graph CFX-9850GB PLUS Recursion Table and Graph CFX-9850GC PLUS Recursion Table and Graph CFX-9950GB PLUS Recursion Table and Graph fx-9750G PLUS Recursion Table and Graph CFX-9850G PLUS List Function CFX-9850GB PLUS List Function CFX-9850GC PLUS List Function CFX-9950GB PLUS List Function fx-9750G PLUS List Function CFX-9850G PLUS Financial Calculations CFX-9850GB PLUS Financial Calculations CFX-9850GC PLUS Financial Calculations CFX-9950GB PLUS Financial Calculations fx-9750G PLUS Financial Calculations CFX-9850G PLUS Data Communications CFX-9850GB PLUS Data Communications CFX-9850GC PLUS Data Communications CFX-9950GB PLUS Data Communications fx-9750G PLUS Data Communications CFX-9850G PLUS Programming CFX-9850GB PLUS Programming CFX-9850GC PLUS Programming CFX-9950GB PLUS Programming fx-9750G PLUS Programming CFX-9850G PLUS Program Library CFX-9850GB PLUS Program Library CFX-9850GC PLUS Program Library CFX-9950GB PLUS Program Library fx-9750G PLUS Program Library CFX-9850G PLUS Statistical Graphs and Calculations CFX-9850GB PLUS Statistical Graphs and Calculations CFX-9850GC PLUS Statistical Graphs and Calculations CFX-9950GB PLUS Statistical Graphs and Calculations fx-9750G PLUS Statistical Graphs and Calculations fx-9750G Graph Solve fx-9750G Dual Graph fx-9750G Graph-to-Table fx-9750G Data Communications fx-7400G PLUS Data Communications fx-9750G Program Library fx-7400G Program Library fx-7400G PLUS Program Library fx-9750G Financial Calculations fx-7400G Programming fx-7400G PLUS Programming