Whakaoti i te 7(x+9)=5(x-2)

$$7 ( x + 9 ) = 5 ( x - 2 )$$

Whakaoti mō x

$$x = -\frac{73}{2} = -36\frac{1}{2} = -36.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x+9.

$$7x+63=5\left(x-2\right)$$

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

$$7x+63=5x-10$$

Tangohia te 5x mai i ngā taha e rua.

$$7x+63-5x=-10$$

Pahekotia te 7x me -5x, ka 2x.

$$2x+63=-10$$

Tangohia te 63 mai i ngā taha e rua.

$$2x=-10-63$$

Tangohia te 63 i te -10, ka -73.

$$2x=-73$$

Whakawehea ngā taha e rua ki te 2.

$$x=\frac{-73}{2}$$

Ka taea te hautanga \frac{-73}{2} te tuhi anō ko -\frac{73}{2} mā te tango i te tohu tōraro.

$$x=-\frac{73}{2}$$