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Whakaoti mō x, y, z
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Tohaina

y=3x-10
Me whakaoti te -3x+y=-10 mō y.
3x+2\left(3x-10\right)+3z=4 4x-\left(3x-10\right)-2z=15
Whakakapia te 3x-10 mō te y i te whārite tuarua me te tuatoru.
x=\frac{8}{3}-\frac{1}{3}z z=-\frac{5}{2}+\frac{1}{2}x
Me whakaoti ēnei whārite mō x me z takitahi.
z=-\frac{5}{2}+\frac{1}{2}\left(\frac{8}{3}-\frac{1}{3}z\right)
Whakakapia te \frac{8}{3}-\frac{1}{3}z mō te x i te whārite z=-\frac{5}{2}+\frac{1}{2}x.
z=-1
Me whakaoti te z=-\frac{5}{2}+\frac{1}{2}\left(\frac{8}{3}-\frac{1}{3}z\right) mō z.
x=\frac{8}{3}-\frac{1}{3}\left(-1\right)
Whakakapia te -1 mō te z i te whārite x=\frac{8}{3}-\frac{1}{3}z.
x=3
Tātaitia te x i te x=\frac{8}{3}-\frac{1}{3}\left(-1\right).
y=3\times 3-10
Whakakapia te 3 mō te x i te whārite y=3x-10.
y=-1
Tātaitia te y i te y=3\times 3-10.
x=3 y=-1 z=-1
Kua oti te pūnaha te whakatau.