Whakaoti mō r
r=3x+1
Whakaoti mō x
x=\frac{r-1}{3}
Tohaina
Kua tāruatia ki te papatopenga
4\left(r-1\right)=3\times 4x
Me whakarea ngā taha e rua o te whārite ki te 24, arā, te tauraro pātahi he tino iti rawa te kitea o 6,8.
4r-4=3\times 4x
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te r-1.
4r-4=12x
Whakareatia te 3 ki te 4, ka 12.
4r=12x+4
Me tāpiri te 4 ki ngā taha e rua.
\frac{4r}{4}=\frac{12x+4}{4}
Whakawehea ngā taha e rua ki te 4.
r=\frac{12x+4}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
r=3x+1
Whakawehe 12x+4 ki te 4.
4\left(r-1\right)=3\times 4x
Me whakarea ngā taha e rua o te whārite ki te 24, arā, te tauraro pātahi he tino iti rawa te kitea o 6,8.
4r-4=3\times 4x
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te r-1.
4r-4=12x
Whakareatia te 3 ki te 4, ka 12.
12x=4r-4
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{12x}{12}=\frac{4r-4}{12}
Whakawehea ngā taha e rua ki te 12.
x=\frac{4r-4}{12}
Mā te whakawehe ki te 12 ka wetekia te whakareanga ki te 12.
x=\frac{r-1}{3}
Whakawehe -4+4r ki te 12.
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