Whakaoti i te (3x-5)-5(2x-8)=20+4x

$$( 3 x - 5 ) - 5 ( 2 x - 8 ) = 20 + 4 x$$

Whakaoti mō x

$$x = \frac{15}{11} = 1\frac{4}{11} \approx 1.363636364$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 2x-8.

$$3x-5-10x+40=20+4x$$

Pahekotia te 3x me -10x, ka -7x.

$$-7x-5+40=20+4x$$

Tāpirihia te -5 ki te 40, ka 35.

$$-7x+35=20+4x$$

Tangohia te 4x mai i ngā taha e rua.

$$-7x+35-4x=20$$

Pahekotia te -7x me -4x, ka -11x.

$$-11x+35=20$$

Tangohia te 35 mai i ngā taha e rua.

$$-11x=20-35$$

Tangohia te 35 i te 20, ka -15.

$$-11x=-15$$

Whakawehea ngā taha e rua ki te -11.

$$x=\frac{-15}{-11}$$

Ka taea te hautanga \frac{-15}{-11} te whakamāmā ki te \frac{15}{11} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x=\frac{15}{11}$$