\left\{ \begin{array} { l } { 2 x - y + 5 z = 16 } \\ { x - 6 y + 2 z = - 9 } \\ { 3 x + 4 y - z = 32 } \end{array} \right.
Whakaoti mō x, y, z
x=7
y=3
z=1
Tohaina
Kua tāruatia ki te papatopenga
y=2x+5z-16
Me whakaoti te 2x-y+5z=16 mō y.
x-6\left(2x+5z-16\right)+2z=-9 3x+4\left(2x+5z-16\right)-z=32
Whakakapia te 2x+5z-16 mō te y i te whārite tuarua me te tuatoru.
x=\frac{105}{11}-\frac{28}{11}z z=-\frac{11}{19}x+\frac{96}{19}
Me whakaoti ēnei whārite mō x me z takitahi.
z=-\frac{11}{19}\left(\frac{105}{11}-\frac{28}{11}z\right)+\frac{96}{19}
Whakakapia te \frac{105}{11}-\frac{28}{11}z mō te x i te whārite z=-\frac{11}{19}x+\frac{96}{19}.
z=1
Me whakaoti te z=-\frac{11}{19}\left(\frac{105}{11}-\frac{28}{11}z\right)+\frac{96}{19} mō z.
x=\frac{105}{11}-\frac{28}{11}
Whakakapia te 1 mō te z i te whārite x=\frac{105}{11}-\frac{28}{11}z.
x=7
Tātaitia te x i te x=\frac{105}{11}-\frac{28}{11}.
y=2\times 7+5\times 1-16
Whakakapia te 7 mō te x me te 1 mō z i te whārite y=2x+5z-16.
y=3
Tātaitia te y i te y=2\times 7+5\times 1-16.
x=7 y=3 z=1
Kua oti te pūnaha te whakatau.
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