Whakaoti i te 7-4(-9/2+3)=-2left(-9/2-2right)

$$7-4(- \frac{ 9 }{ 2 } +3) = -2 \left( - \frac{ 9 }{ 2 } -2 \right)$$

Manatoko

Ngā Upane Otinga

Me tahuri te 3 ki te hautau \frac{6}{2}.

$$7-4\left(-\frac{9}{2}+\frac{6}{2}\right)=-2\left(-\frac{9}{2}-2\right)$$

Tā te mea he rite te tauraro o -\frac{9}{2} me \frac{6}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$7-4\times \frac{-9+6}{2}=-2\left(-\frac{9}{2}-2\right)$$

Tāpirihia te -9 ki te 6, ka -3.

$$7-4\left(-\frac{3}{2}\right)=-2\left(-\frac{9}{2}-2\right)$$

Tuhia te 4\left(-\frac{3}{2}\right) hei hautanga kotahi.

$$7-\frac{4\left(-3\right)}{2}=-2\left(-\frac{9}{2}-2\right)$$

Whakareatia te 4 ki te -3, ka -12.

$$7-\frac{-12}{2}=-2\left(-\frac{9}{2}-2\right)$$

Whakawehea te -12 ki te 2, kia riro ko -6.

$$7-\left(-6\right)=-2\left(-\frac{9}{2}-2\right)$$

Ko te tauaro o -6 ko 6.

$$7+6=-2\left(-\frac{9}{2}-2\right)$$

Tāpirihia te 7 ki te 6, ka 13.

$$13=-2\left(-\frac{9}{2}-2\right)$$

Me tahuri te 2 ki te hautau \frac{4}{2}.

$$13=-2\left(-\frac{9}{2}-\frac{4}{2}\right)$$

Tā te mea he rite te tauraro o -\frac{9}{2} me \frac{4}{2}, me tango rāua mā te tango i ō raua taurunga.

$$13=-2\times \frac{-9-4}{2}$$

Tangohia te 4 i te -9, ka -13.

$$13=-2\left(-\frac{13}{2}\right)$$

Whakareatia -2 ki te -\frac{13}{2}.

$$13=13$$

Whakatauritea te 13 me te 13.

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