Whakaoti mō x, y, z
x=-2
y=3
z=1
Tohaina
Kua tāruatia ki te papatopenga
y=2x+5z+2
Me whakaoti te 2x-y+5z=-2 mō y.
x+3\left(2x+5z+2\right)-z=6 4x+2x+5z+2+3z=-2
Whakakapia te 2x+5z+2 mō te y i te whārite tuarua me te tuatoru.
x=-2z z=-\frac{1}{2}-\frac{3}{4}x
Me whakaoti ēnei whārite mō x me z takitahi.
z=-\frac{1}{2}-\frac{3}{4}\left(-2\right)z
Whakakapia te -2z mō te x i te whārite z=-\frac{1}{2}-\frac{3}{4}x.
z=1
Me whakaoti te z=-\frac{1}{2}-\frac{3}{4}\left(-2\right)z mō z.
x=-2
Whakakapia te 1 mō te z i te whārite x=-2z.
y=2\left(-2\right)+5\times 1+2
Whakakapia te -2 mō te x me te 1 mō z i te whārite y=2x+5z+2.
y=3
Tātaitia te y i te y=2\left(-2\right)+5\times 1+2.
x=-2 y=3 z=1
Kua oti te pūnaha te whakatau.
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