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118
kk
kk
k Solving Linear Equations with Three Unknowns
Example To solve the following linear equations for x, y, and z:
4x + y –2z=–1
x+6y+3z=1
–5x +4y+ 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
a1 → coefficient b1 → coefficient c1 → coefficient d1 →
coefficient
a2 → coefficient b2 → coefficient c2 → coefficient d2 →
coefficient a3 → coefficient b3 → coefficient c3 → coefficient d3
• You can input fractions and value memory contents as coefficients.
After inputting the coefficients, solve the equations.
1(SOLV)
1 23456
123456
7 - 2 Linear Equations with Two to Six Unknowns
Highlighted solution cell value
Value being input into highlighted cell
Coefficient input cells
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