Whakaoti i te 5*1.42-5(2*1.42+1)=-3(4*1.42+5)

$$5 \times 1.42-5(2 \times 1.42+1)=-3(4 \times 1.42+5)$$

Manatoko

Ngā Upane Otinga

Whakareatia te 5 ki te 1.42, ka 7.1.

$$7.1-5\left(2\times 1.42+1\right)=-3\left(4\times 1.42+5\right)$$

Whakareatia te 2 ki te 1.42, ka 2.84.

$$7.1-5\left(2.84+1\right)=-3\left(4\times 1.42+5\right)$$

Tāpirihia te 2.84 ki te 1, ka 3.84.

$$7.1-5\times 3.84=-3\left(4\times 1.42+5\right)$$

Whakareatia te 5 ki te 3.84, ka 19.2.

$$7.1-19.2=-3\left(4\times 1.42+5\right)$$

Tangohia te 19.2 i te 7.1, ka -12.1.

$$-12.1=-3\left(4\times 1.42+5\right)$$

Whakareatia te 4 ki te 1.42, ka 5.68.

$$-12.1=-3\left(5.68+5\right)$$

Tāpirihia te 5.68 ki te 5, ka 10.68.

$$-12.1=-3\times 10.68$$

Whakareatia te -3 ki te 10.68, ka -32.04.

$$-12.1=-32.04$$

Whakatauritea te -12.1 me te -32.04.

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