Whakaoti i te 2x+.3(10)=.25(10+x)

$$2 x + .3 ( 10 ) = .25 ( 10 + x )$$

Whakaoti mō x

$$x=-\frac{2}{7}\approx -0.285714286$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 0.3 ki te 10, ka 3.

$$2x+3=0.25\left(10+x\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 0.25 ki te 10+x.

$$2x+3=2.5+0.25x$$

Tangohia te 0.25x mai i ngā taha e rua.

$$2x+3-0.25x=2.5$$

Pahekotia te 2x me -0.25x, ka 1.75x.

$$1.75x+3=2.5$$

Tangohia te 3 mai i ngā taha e rua.

$$1.75x=2.5-3$$

Tangohia te 3 i te 2.5, ka -0.5.

$$1.75x=-0.5$$

Whakawehea ngā taha e rua ki te 1.75.

$$x=\frac{-0.5}{1.75}$$

Whakarohaina te \frac{-0.5}{1.75} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{-50}{175}$$

Whakahekea te hautanga \frac{-50}{175} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$x=-\frac{2}{7}$$