Whakaoti i te 5x-4[2-(6-7x)]=2x

$$5 x - 4 [ 2 - ( 6 - 7 x ) ] = 2 x$$

Whakaoti mō x

$$x=\frac{16}{25}=0.64$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Hei kimi i te tauaro o 6-7x, kimihia te tauaro o ia taurangi.

$$5x-4\left(2-6-\left(-7x\right)\right)=2x$$

Ko te tauaro o -7x ko 7x.

$$5x-4\left(2-6+7x\right)=2x$$

Tangohia te 6 i te 2, ka -4.

$$5x-4\left(-4+7x\right)=2x$$

Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te -4+7x.

$$5x+16-28x=2x$$

Pahekotia te 5x me -28x, ka -23x.

$$-23x+16=2x$$

Tangohia te 2x mai i ngā taha e rua.

$$-23x+16-2x=0$$

Pahekotia te -23x me -2x, ka -25x.

$$-25x+16=0$$

Tangohia te 16 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-25x=-16$$

Whakawehea ngā taha e rua ki te -25.

$$x=\frac{-16}{-25}$$

Ka taea te hautanga \frac{-16}{-25} te whakamāmā ki te \frac{16}{25} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x=\frac{16}{25}$$