Whakaoti i te 8(x-42)=4

$$8(x-42)=4$$

Whakaoti mō x

$$x = \frac{85}{2} = 42\frac{1}{2} = 42.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakawehea ngā taha e rua ki te 8.

$$x-42=\frac{4}{8}$$

Whakahekea te hautanga \frac{4}{8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$x-42=\frac{1}{2}$$

Me tāpiri te 42 ki ngā taha e rua.

$$x=\frac{1}{2}+42$$

Me tahuri te 42 ki te hautau \frac{84}{2}.

$$x=\frac{1}{2}+\frac{84}{2}$$

Tā te mea he rite te tauraro o \frac{1}{2} me \frac{84}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$x=\frac{1+84}{2}$$

Tāpirihia te 1 ki te 84, ka 85.

$$x=\frac{85}{2}$$