Whakaoti i te 16x-0.4+3(2-x)=(2.5x+2)*2

$$16 x - 0.4 + 3 ( 2 - x ) = ( 2.5 x + 2 ) \cdot 2$$

Whakaoti mō x

$$x=-0.2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 2-x.

$$16x-0.4+6-3x=\left(2.5x+2\right)\times 2$$

Tāpirihia te -0.4 ki te 6, ka 5.6.

$$16x+5.6-3x=\left(2.5x+2\right)\times 2$$

Pahekotia te 16x me -3x, ka 13x.

$$13x+5.6=\left(2.5x+2\right)\times 2$$

Whakamahia te āhuatanga tohatoha hei whakarea te 2.5x+2 ki te 2.

$$13x+5.6=5x+4$$

Tangohia te 5x mai i ngā taha e rua.

$$13x+5.6-5x=4$$

Pahekotia te 13x me -5x, ka 8x.

$$8x+5.6=4$$

Tangohia te 5.6 mai i ngā taha e rua.

$$8x=4-5.6$$

Tangohia te 5.6 i te 4, ka -1.6.

$$8x=-1.6$$

Whakawehea ngā taha e rua ki te 8.

$$x=\frac{-1.6}{8}$$

Whakarohaina te \frac{-1.6}{8} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{-16}{80}$$

Whakahekea te hautanga \frac{-16}{80} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 16.

$$x=-\frac{1}{5}$$