Whakaoti i te 8x-7.2(1+0.5)=7x-7(1+0.5)x+700

$$8x-7.2(1+0.5)=7x-7(1+0.5)x+700$$

Whakaoti mō x

$$x = \frac{7108}{115} = 61\frac{93}{115} \approx 61.808695652$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tāpirihia te 1 ki te 0.5, ka 1.5.

$$8x-7.2\times 1.5=7x-7\left(1+0.5\right)x+700$$

Whakareatia te 7.2 ki te 1.5, ka 10.8.

$$8x-10.8=7x-7\left(1+0.5\right)x+700$$

Tāpirihia te 1 ki te 0.5, ka 1.5.

$$8x-10.8=7x-7\times 1.5x+700$$

Whakareatia te 7 ki te 1.5, ka 10.5.

$$8x-10.8=7x-10.5x+700$$

Pahekotia te 7x me -10.5x, ka -3.5x.

$$8x-10.8=-3.5x+700$$

Me tāpiri te 3.5x ki ngā taha e rua.

$$8x-10.8+3.5x=700$$

Pahekotia te 8x me 3.5x, ka 11.5x.

$$11.5x-10.8=700$$

Me tāpiri te 10.8 ki ngā taha e rua.

$$11.5x=700+10.8$$

Tāpirihia te 700 ki te 10.8, ka 710.8.

$$11.5x=710.8$$

Whakawehea ngā taha e rua ki te 11.5.

$$x=\frac{710.8}{11.5}$$

Whakarohaina te \frac{710.8}{11.5} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{7108}{115}$$