Datrys ar gyfer x
x=12z+873
Datrys ar gyfer z
z=\frac{x-873}{12}
Rhannu
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z=\frac{1}{12}x-\frac{291}{4}
Rhannu pob term x-873 â 12 i gael \frac{1}{12}x-\frac{291}{4}.
\frac{1}{12}x-\frac{291}{4}=z
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
\frac{1}{12}x=z+\frac{291}{4}
Ychwanegu \frac{291}{4} at y ddwy ochr.
\frac{\frac{1}{12}x}{\frac{1}{12}}=\frac{z+\frac{291}{4}}{\frac{1}{12}}
Lluosi’r ddwy ochr â 12.
x=\frac{z+\frac{291}{4}}{\frac{1}{12}}
Mae rhannu â \frac{1}{12} yn dad-wneud lluosi â \frac{1}{12}.
x=12z+873
Rhannwch z+\frac{291}{4} â \frac{1}{12} drwy luosi z+\frac{291}{4} â chilydd \frac{1}{12}.
z=\frac{1}{12}x-\frac{291}{4}
Rhannu pob term x-873 â 12 i gael \frac{1}{12}x-\frac{291}{4}.
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