Datrys ar gyfer x
x=5y-2
Datrys ar gyfer y
y=\frac{x+2}{5}
Graff
Rhannu
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y=\frac{1}{5}x+\frac{2}{5}
Rhannu pob term x+2 â 5 i gael \frac{1}{5}x+\frac{2}{5}.
\frac{1}{5}x+\frac{2}{5}=y
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
\frac{1}{5}x=y-\frac{2}{5}
Tynnu \frac{2}{5} o'r ddwy ochr.
\frac{\frac{1}{5}x}{\frac{1}{5}}=\frac{y-\frac{2}{5}}{\frac{1}{5}}
Lluosi’r ddwy ochr â 5.
x=\frac{y-\frac{2}{5}}{\frac{1}{5}}
Mae rhannu â \frac{1}{5} yn dad-wneud lluosi â \frac{1}{5}.
x=5y-2
Rhannwch y-\frac{2}{5} â \frac{1}{5} drwy luosi y-\frac{2}{5} â chilydd \frac{1}{5}.
y=\frac{1}{5}x+\frac{2}{5}
Rhannu pob term x+2 â 5 i gael \frac{1}{5}x+\frac{2}{5}.
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