Whakaoti i te 3.5=-frac{3sqrt{7}}{2}*sqrt{7}+b

$$3.5 = - \frac { 3 \sqrt { 7 } } { 2 } \times \sqrt { 7 } + b$$

Whakaoti mō b

$$b=14$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia ngā taha e rua o te whārite ki te 2.

$$7=2\left(-\frac{3\sqrt{7}}{2}\right)\sqrt{7}+2b$$

Tuhia te 2\left(-\frac{3\sqrt{7}}{2}\right) hei hautanga kotahi.

$$7=\frac{-2\times 3\sqrt{7}}{2}\sqrt{7}+2b$$

Me whakakore te 2 me te 2.

$$7=-3\sqrt{7}\sqrt{7}+2b$$

Whakareatia te \sqrt{7} ki te \sqrt{7}, ka 7.

$$7=-3\times 7+2b$$

Whakareatia te -3 ki te 7, ka -21.

$$7=-21+2b$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$-21+2b=7$$

Me tāpiri te 21 ki ngā taha e rua.

$$2b=7+21$$

Tāpirihia te 7 ki te 21, ka 28.

$$2b=28$$

Whakawehea ngā taha e rua ki te 2.

$$b=\frac{28}{2}$$

Whakawehea te 28 ki te 2, kia riro ko 14.

$$b=14$$