Whakaoti i te 3(y+9)=12y+13

$$3 ( y + 9 ) = 12 y + 13$$

Whakaoti mō y

$$y = \frac{14}{9} = 1\frac{5}{9} \approx 1.555555556$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te y+9.

$$3y+27=12y+13$$

Tangohia te 12y mai i ngā taha e rua.

$$3y+27-12y=13$$

Pahekotia te 3y me -12y, ka -9y.

$$-9y+27=13$$

Tangohia te 27 mai i ngā taha e rua.

$$-9y=13-27$$

Tangohia te 27 i te 13, ka -14.

$$-9y=-14$$

Whakawehea ngā taha e rua ki te -9.

$$y=\frac{-14}{-9}$$

Ka taea te hautanga \frac{-14}{-9} te whakamāmā ki te \frac{14}{9} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$y=\frac{14}{9}$$