Whakaoti i te 2x-1/4+x-1/5=2

$$\frac{ 2x-1 }{ 4 } + \frac{ x-1 }{ 5 } =2$$

Whakaoti mō x

$$x = \frac{7}{2} = 3\frac{1}{2} = 3.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 20, arā, te tauraro pātahi he tino iti rawa te kitea o 4,5.

$$5\left(2x-1\right)+4\left(x-1\right)=40$$

Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x-1.

$$10x-5+4\left(x-1\right)=40$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x-1.

$$10x-5+4x-4=40$$

Pahekotia te 10x me 4x, ka 14x.

$$14x-5-4=40$$

Tangohia te 4 i te -5, ka -9.

$$14x-9=40$$

Me tāpiri te 9 ki ngā taha e rua.

$$14x=40+9$$

Tāpirihia te 40 ki te 9, ka 49.

$$14x=49$$

Whakawehea ngā taha e rua ki te 14.

$$x=\frac{49}{14}$$

Whakahekea te hautanga \frac{49}{14} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

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