Whakaoti mō x
x=21
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{13}{7}x+9=48
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{13}{7}x=48-9
Tangohia te 9 mai i ngā taha e rua.
\frac{13}{7}x=39
Tangohia te 9 i te 48, ka 39.
x=39\times \frac{7}{13}
Me whakarea ngā taha e rua ki te \frac{7}{13}, te tau utu o \frac{13}{7}.
x=\frac{39\times 7}{13}
Tuhia te 39\times \frac{7}{13} hei hautanga kotahi.
x=\frac{273}{13}
Whakareatia te 39 ki te 7, ka 273.
x=21
Whakawehea te 273 ki te 13, kia riro ko 21.
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