Whakaoti i te 2(x+5)/3+2=4x/5

$$\frac { 2 ( x + 5 ) } { 3 } + 2 = \frac { 4 x } { 5 }$$

Whakaoti mō x

$$x=40$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 15, arā, te tauraro pātahi he tino iti rawa te kitea o 3,5.

$$5\times 2\left(x+5\right)+30=3\times 4x$$

Whakareatia te 5 ki te 2, ka 10.

$$10\left(x+5\right)+30=3\times 4x$$

Whakamahia te āhuatanga tohatoha hei whakarea te 10 ki te x+5.

$$10x+50+30=3\times 4x$$

Tāpirihia te 50 ki te 30, ka 80.

$$10x+80=3\times 4x$$

Whakareatia te 3 ki te 4, ka 12.

$$10x+80=12x$$

Tangohia te 12x mai i ngā taha e rua.

$$10x+80-12x=0$$

Pahekotia te 10x me -12x, ka -2x.

$$-2x+80=0$$

Tangohia te 80 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-2x=-80$$

Whakawehea ngā taha e rua ki te -2.

$$x=\frac{-80}{-2}$$

Whakawehea te -80 ki te -2, kia riro ko 40.

$$x=40$$