Whakaoti i te 0*3*200x+200-100/10=0*2*300*20+300-x/15

$$\frac{ 0 \cdot 3 \cdot 200x+200-100 }{ 10 } = \frac{ 0 \cdot 2 \cdot 300 \cdot 20+300-x }{ 15 }$$

Whakaoti mō x

$$x=150$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 30, arā, te tauraro pātahi he tino iti rawa te kitea o 10,15.

$$3\left(0\times 3\times 200x+200-100\right)=2\left(0\times 2\times 300\times 20+300-x\right)$$

Whakareatia te 0 ki te 3, ka 0.

$$3\left(0\times 200x+200-100\right)=2\left(0\times 2\times 300\times 20+300-x\right)$$

Whakareatia te 0 ki te 200, ka 0.

$$3\left(0x+200-100\right)=2\left(0\times 2\times 300\times 20+300-x\right)$$

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

$$3\left(0+200-100\right)=2\left(0\times 2\times 300\times 20+300-x\right)$$

Tāpirihia te 0 ki te 200, ka 200.

$$3\left(200-100\right)=2\left(0\times 2\times 300\times 20+300-x\right)$$

Tangohia te 100 i te 200, ka 100.

$$3\times 100=2\left(0\times 2\times 300\times 20+300-x\right)$$

Whakareatia te 3 ki te 100, ka 300.

$$300=2\left(0\times 2\times 300\times 20+300-x\right)$$

Whakareatia te 0 ki te 2, ka 0.

$$300=2\left(0\times 300\times 20+300-x\right)$$

Whakareatia te 0 ki te 300, ka 0.

$$300=2\left(0\times 20+300-x\right)$$

Whakareatia te 0 ki te 20, ka 0.

$$300=2\left(0+300-x\right)$$

Tāpirihia te 0 ki te 300, ka 300.

$$300=2\left(300-x\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 300-x.

$$300=600-2x$$

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

$$600-2x=300$$

Tangohia te 600 mai i ngā taha e rua.

$$-2x=300-600$$

Tangohia te 600 i te 300, ka -300.

$$-2x=-300$$

Whakawehea ngā taha e rua ki te -2.

$$x=\frac{-300}{-2}$$

Whakawehea te -300 ki te -2, kia riro ko 150.

$$x=150$$