Whakaoti i te 4x+9-9(x-1)=3(x+5)

$$4 x + 9 - 9 ( x - 1 ) = 3 ( x + 5 )$$

Whakaoti mō x

$$x=\frac{3}{8}=0.375$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te -9 ki te x-1.

$$4x+9-9x+9=3\left(x+5\right)$$

Pahekotia te 4x me -9x, ka -5x.

$$-5x+9+9=3\left(x+5\right)$$

Tāpirihia te 9 ki te 9, ka 18.

$$-5x+18=3\left(x+5\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x+5.

$$-5x+18=3x+15$$

Tangohia te 3x mai i ngā taha e rua.

$$-5x+18-3x=15$$

Pahekotia te -5x me -3x, ka -8x.

$$-8x+18=15$$

Tangohia te 18 mai i ngā taha e rua.

$$-8x=15-18$$

Tangohia te 18 i te 15, ka -3.

$$-8x=-3$$

Whakawehea ngā taha e rua ki te -8.

$$x=\frac{-3}{-8}$$

Ka taea te hautanga \frac{-3}{-8} te whakamāmā ki te \frac{3}{8} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x=\frac{3}{8}$$