Whakaoti i te 9+3x/3=15+x/5

$$\frac { 9 + 3 x } { 3 } = \frac { 15 + x } { 5 }$$

Whakaoti mō x

$$x=0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 15, arā, te tauraro pātahi he tino iti rawa te kitea o 3,5.

$$5\left(9+3x\right)=3\left(15+x\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 9+3x.

$$45+15x=3\left(15+x\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 15+x.

$$45+15x=45+3x$$

Tangohia te 3x mai i ngā taha e rua.

$$45+15x-3x=45$$

Pahekotia te 15x me -3x, ka 12x.

$$45+12x=45$$

Tangohia te 45 mai i ngā taha e rua.

$$12x=45-45$$

Tangohia te 45 i te 45, ka 0.

$$12x=0$$

He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te 12 e ōrite ki 0, me ōrite pū te x ki 0.

$$x=0$$