Datrys ar gyfer x
x=12z+87.3
Datrys ar gyfer z
z=\frac{x}{12}-7.275
Rhannu
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z=\frac{1}{12}x-7.275
Rhannu pob term x-87.3 â 12 i gael \frac{1}{12}x-7.275.
\frac{1}{12}x-7.275=z
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
\frac{1}{12}x=z+7.275
Ychwanegu 7.275 at y ddwy ochr.
\frac{\frac{1}{12}x}{\frac{1}{12}}=\frac{z+7.275}{\frac{1}{12}}
Lluosi’r ddwy ochr â 12.
x=\frac{z+7.275}{\frac{1}{12}}
Mae rhannu â \frac{1}{12} yn dad-wneud lluosi â \frac{1}{12}.
x=12z+87.3
Rhannwch z+7.275 â \frac{1}{12} drwy luosi z+7.275 â chilydd \frac{1}{12}.
z=\frac{1}{12}x-7.275
Rhannu pob term x-87.3 â 12 i gael \frac{1}{12}x-7.275.
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