Whakaoti i te 2(3x+2)-3(5x-6)+4(7x+8)=111

$$2 ( 3 x + 2 ) - 3 ( 5 x - 6 ) + 4 ( 7 x + 8 ) = 111$$

Whakaoti mō x

$$x=3$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$6x+4-3\left(5x-6\right)+4\left(7x+8\right)=111$$

Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 5x-6.

$$6x+4-15x+18+4\left(7x+8\right)=111$$

Pahekotia te 6x me -15x, ka -9x.

$$-9x+4+18+4\left(7x+8\right)=111$$

Tāpirihia te 4 ki te 18, ka 22.

$$-9x+22+4\left(7x+8\right)=111$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 7x+8.

$$-9x+22+28x+32=111$$

Pahekotia te -9x me 28x, ka 19x.

$$19x+22+32=111$$

Tāpirihia te 22 ki te 32, ka 54.

$$19x+54=111$$

Tangohia te 54 mai i ngā taha e rua.

$$19x=111-54$$

Tangohia te 54 i te 111, ka 57.

$$19x=57$$

Whakawehea ngā taha e rua ki te 19.

$$x=\frac{57}{19}$$

Whakawehea te 57 ki te 19, kia riro ko 3.

$$x=3$$