Whakaoti i te 877=(x*56)+(x*87)+(81-2x*88)

$$877 = ( x \times 56 ) + ( x \times 87 ) + ( 81 - 2 x \times 88 )$$

Whakaoti mō x

$$x = -\frac{796}{33} = -24\frac{4}{33} \approx -24.121212121$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Pahekotia te x\times 56 me x\times 87, ka 143x.

$$877=143x+81-2x\times 88$$

Whakareatia te 2 ki te 88, ka 176.

$$877=143x+81-176x$$

Pahekotia te 143x me -176x, ka -33x.

$$877=-33x+81$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$-33x+81=877$$

Tangohia te 81 mai i ngā taha e rua.

$$-33x=877-81$$

Tangohia te 81 i te 877, ka 796.

$$-33x=796$$

Whakawehea ngā taha e rua ki te -33.

$$x=\frac{796}{-33}$$

Ka taea te hautanga \frac{796}{-33} te tuhi anō ko -\frac{796}{33} mā te tango i te tohu tōraro.

$$x=-\frac{796}{33}$$