Whakaoti i te 800*01(t-130)+400(t-10)=0

$$800 \times 01 ( t - 130 ) + 400 ( t - 10 ) = 0$$

Whakaoti mō t

$$t=10$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 800 ki te 0, ka 0.

$$0\times 1\left(t-130\right)+400\left(t-10\right)=0$$

Whakareatia te 0 ki te 1, ka 0.

$$0\left(t-130\right)+400\left(t-10\right)=0$$

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

$$0+400\left(t-10\right)=0$$

Whakamahia te āhuatanga tohatoha hei whakarea te 400 ki te t-10.

$$0+400t-4000=0$$

Tangohia te 4000 i te 0, ka -4000.

$$-4000+400t=0$$

Me tāpiri te 4000 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.

$$400t=4000$$

Whakawehea ngā taha e rua ki te 400.

$$t=\frac{4000}{400}$$

Whakawehea te 4000 ki te 400, kia riro ko 10.

$$t=10$$