Whakaoti i te 3/8a-4=-1/4

$$\frac { 3 } { 8 } a - 4 = - \frac { 1 } { 4 }$$

Whakaoti mō a

$$a=10$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te 4 ki ngā taha e rua.

$$\frac{3}{8}a=-\frac{1}{4}+4$$

Me tahuri te 4 ki te hautau \frac{16}{4}.

$$\frac{3}{8}a=-\frac{1}{4}+\frac{16}{4}$$

Tā te mea he rite te tauraro o -\frac{1}{4} me \frac{16}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{3}{8}a=\frac{-1+16}{4}$$

Tāpirihia te -1 ki te 16, ka 15.

$$\frac{3}{8}a=\frac{15}{4}$$

Me whakarea ngā taha e rua ki te \frac{8}{3}, te tau utu o \frac{3}{8}.

$$a=\frac{15}{4}\times \frac{8}{3}$$

Me whakarea te \frac{15}{4} ki te \frac{8}{3} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$a=\frac{15\times 8}{4\times 3}$$

Mahia ngā whakarea i roto i te hautanga \frac{15\times 8}{4\times 3}.

$$a=\frac{120}{12}$$

Whakawehea te 120 ki te 12, kia riro ko 10.

$$a=10$$