Whakaoti i te (80-x)*0.06+x*0.05=800

$$(80-x) \times 0.06+x \times 0.05=800$$

Whakaoti mō x

$$x=-79520$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 80-x ki te 0.06.

$$4.8-0.06x+x\times 0.05=800$$

Pahekotia te -0.06x me x\times 0.05, ka -0.01x.

$$4.8-0.01x=800$$

Tangohia te 4.8 mai i ngā taha e rua.

$$-0.01x=800-4.8$$

Tangohia te 4.8 i te 800, ka 795.2.

$$-0.01x=795.2$$

Whakawehea ngā taha e rua ki te -0.01.

$$x=\frac{795.2}{-0.01}$$

Whakarohaina te \frac{795.2}{-0.01} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{79520}{-1}$$

Ka taea te hautanga \frac{79520}{-1} te tuhi anō ko -79520 mā te tango i te tohu tōraro.

$$x=-79520$$