Whakaoti i te 2*(6+x)+(6+x)+x=1140

$$2 \times (6+x)+(6+x)+x=1140$$

Whakaoti mō x

$$x = \frac{561}{2} = 280\frac{1}{2} = 280.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 6+x.

$$12+2x+6+x+x=1140$$

Tāpirihia te 12 ki te 6, ka 18.

$$18+2x+x+x=1140$$

Pahekotia te 2x me x, ka 3x.

$$18+3x+x=1140$$

Pahekotia te 3x me x, ka 4x.

$$18+4x=1140$$

Tangohia te 18 mai i ngā taha e rua.

$$4x=1140-18$$

Tangohia te 18 i te 1140, ka 1122.

$$4x=1122$$

Whakawehea ngā taha e rua ki te 4.

$$x=\frac{1122}{4}$$

Whakahekea te hautanga \frac{1122}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$x=\frac{561}{2}$$