Whakaoti i te 121-x=56+x*2

$$121-x=56+x \times 2$$

Whakaoti mō x

$$x = \frac{65}{3} = 21\frac{2}{3} \approx 21.666666667$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te x\times 2 mai i ngā taha e rua.

$$121-x-x\times 2=56$$

Pahekotia te -x me -x\times 2, ka -3x.

$$121-3x=56$$

Tangohia te 121 mai i ngā taha e rua.

$$-3x=56-121$$

Tangohia te 121 i te 56, ka -65.

$$-3x=-65$$

Whakawehea ngā taha e rua ki te -3.

$$x=\frac{-65}{-3}$$

Ka taea te hautanga \frac{-65}{-3} te whakamāmā ki te \frac{65}{3} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x=\frac{65}{3}$$