Whakaoti i te 21y+2=07y+03y-35

$$21 y + 2 = 07 y + 03 y - 35$$

Whakaoti mō y

$$y = -\frac{37}{21} = -1\frac{16}{21} \approx -1.761904762$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 0 ki te 7, ka 0. Whakareatia te 0 ki te 3, ka 0.

$$21y+2=0y+0y-35$$

Ko te tau i whakarea ki te kore ka hua ko te kore.

$$21y+2=0+0y-35$$

Ko te tau i whakarea ki te kore ka hua ko te kore.

$$21y+2=0+0-35$$

Tāpirihia te 0 ki te 0, ka 0.

$$21y+2=-35$$

Tangohia te 2 mai i ngā taha e rua.

$$21y=-35-2$$

Tangohia te 2 i te -35, ka -37.

$$21y=-37$$

Whakawehea ngā taha e rua ki te 21.

$$y=\frac{-37}{21}$$

Ka taea te hautanga \frac{-37}{21} te tuhi anō ko -\frac{37}{21} mā te tango i te tohu tōraro.

$$y=-\frac{37}{21}$$