Whakaoti i te {l}{2x+y=87}{z=x+y-64}{text{Solvefor}atext{where}}{a=z}

$$\left. \begin{array} { l } { 2 x + y = 87 }\\ { z = x + y - 64 }\\ { \text{Solve for } a \text{ where} } \\ { a = z } \end{array} \right.$$

Whakaoti mō x, y, z

$$x=23-a$$

$$y=2a+41$$

$$z=a$$

Ngā Hipanga Poto E Whakamahi Whakakapinga Ana

Me raupapa anō ngā whārite.

$$z=x+y-64 2x+y=87 a=z$$

Whakakapia te x+y-64 mō te z i te whārite a=z.

$$a=x+y-64$$

Me whakaoti te whārite tuarua mō y me te whārite tuatoru mō x.

$$y=-2x+87 x=-y+a+64$$

Whakakapia te -2x+87 mō te y i te whārite x=-y+a+64.

$$x=-\left(-2x+87\right)+a+64$$

Me whakaoti te x=-\left(-2x+87\right)+a+64 mō x.

$$x=23-a$$

Whakakapia te 23-a mō te x i te whārite y=-2x+87.

$$y=-2\left(23-a\right)+87$$

Tātaitia te y i te y=-2\left(23-a\right)+87.

$$y=41+2a$$

Whakakapia te 41+2a mō te y me te 23-a mō x i te whārite z=x+y-64.

$$z=23-a+41+2a-64$$

Tātaitia te z i te z=23-a+41+2a-64.

$$z=a$$

Kua oti te pūnaha te whakatau.

$$x=23-a y=41+2a z=a$$