Whakaoti i te 7x-1/2y=30

$$7x- \frac{ 1 }{ 2 } y=30$$

Whakaoti mō x

$$x=\frac{y+60}{14}$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te \frac{1}{2}y ki ngā taha e rua.

$$7x=30+\frac{1}{2}y$$

He hanga arowhānui tō te whārite.

$$7x=\frac{y}{2}+30$$

Whakawehea ngā taha e rua ki te 7.

$$\frac{7x}{7}=\frac{\frac{y}{2}+30}{7}$$

Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.

$$x=\frac{\frac{y}{2}+30}{7}$$

Whakawehe 30+\frac{y}{2} ki te 7.

$$x=\frac{y}{14}+\frac{30}{7}$$

Whakaoti mō y

$$y=14x-60$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 7x mai i ngā taha e rua.

$$-\frac{1}{2}y=30-7x$$

Me whakarea ngā taha e rua ki te -2.

$$\frac{-\frac{1}{2}y}{-\frac{1}{2}}=\frac{30-7x}{-\frac{1}{2}}$$

Mā te whakawehe ki te -\frac{1}{2} ka wetekia te whakareanga ki te -\frac{1}{2}.

$$y=\frac{30-7x}{-\frac{1}{2}}$$

Whakawehe 30-7x ki te -\frac{1}{2} mā te whakarea 30-7x ki te tau huripoki o -\frac{1}{2}.

$$y=14x-60$$