Datrys ar gyfer D_0
D_{0}=\frac{4XY+40Y+5Y_{3}}{4077}
Datrys ar gyfer X
\left\{\begin{matrix}X=-\frac{\frac{5Y_{3}}{2}-\frac{4077D_{0}}{2}+20Y}{2Y}\text{, }&Y\neq 0\\X\in \mathrm{R}\text{, }&Y_{3}=\frac{4077D_{0}}{5}\text{ and }Y=0\end{matrix}\right.
Rhannu
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-5.5Y_{3}-25Y-\left(2XY-3Y_{3}-5Y\right)=-2038.5D_{0}
Cyfuno 3.5Y_{3} a -9Y_{3} i gael -5.5Y_{3}.
-5.5Y_{3}-25Y-2XY+3Y_{3}+5Y=-2038.5D_{0}
I ddod o hyd i wrthwyneb 2XY-3Y_{3}-5Y, dewch o hyd i wrthwyneb pob term.
-2.5Y_{3}-25Y-2XY+5Y=-2038.5D_{0}
Cyfuno -5.5Y_{3} a 3Y_{3} i gael -2.5Y_{3}.
-2.5Y_{3}-20Y-2XY=-2038.5D_{0}
Cyfuno -25Y a 5Y i gael -20Y.
-2038.5D_{0}=-2.5Y_{3}-20Y-2XY
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
-2038.5D_{0}=-2XY-\frac{5Y_{3}}{2}-20Y
Mae'r hafaliad yn y ffurf safonol.
\frac{-2038.5D_{0}}{-2038.5}=\frac{-2XY-\frac{5Y_{3}}{2}-20Y}{-2038.5}
Rhannu dwy ochr hafaliad â -2038.5, sydd yr un peth â lluosi’r ddwy ochr â chilydd y ffracsiwn.
D_{0}=\frac{-2XY-\frac{5Y_{3}}{2}-20Y}{-2038.5}
Mae rhannu â -2038.5 yn dad-wneud lluosi â -2038.5.
D_{0}=\frac{4XY+40Y+5Y_{3}}{4077}
Rhannwch -\frac{5Y_{3}}{2}-20Y-2XY â -2038.5 drwy luosi -\frac{5Y_{3}}{2}-20Y-2XY â chilydd -2038.5.
-5.5Y_{3}-25Y-\left(2XY-3Y_{3}-5Y\right)=-2038.5D_{0}
Cyfuno 3.5Y_{3} a -9Y_{3} i gael -5.5Y_{3}.
-5.5Y_{3}-25Y-2XY+3Y_{3}+5Y=-2038.5D_{0}
I ddod o hyd i wrthwyneb 2XY-3Y_{3}-5Y, dewch o hyd i wrthwyneb pob term.
-2.5Y_{3}-25Y-2XY+5Y=-2038.5D_{0}
Cyfuno -5.5Y_{3} a 3Y_{3} i gael -2.5Y_{3}.
-2.5Y_{3}-20Y-2XY=-2038.5D_{0}
Cyfuno -25Y a 5Y i gael -20Y.
-20Y-2XY=-2038.5D_{0}+2.5Y_{3}
Ychwanegu 2.5Y_{3} at y ddwy ochr.
-2XY=-2038.5D_{0}+2.5Y_{3}+20Y
Ychwanegu 20Y at y ddwy ochr.
\left(-2Y\right)X=\frac{5Y_{3}}{2}-\frac{4077D_{0}}{2}+20Y
Mae'r hafaliad yn y ffurf safonol.
\frac{\left(-2Y\right)X}{-2Y}=\frac{\frac{5Y_{3}}{2}-\frac{4077D_{0}}{2}+20Y}{-2Y}
Rhannu’r ddwy ochr â -2Y.
X=\frac{\frac{5Y_{3}}{2}-\frac{4077D_{0}}{2}+20Y}{-2Y}
Mae rhannu â -2Y yn dad-wneud lluosi â -2Y.
X=-\frac{5Y_{3}+40Y-4077D_{0}}{4Y}
Rhannwch -\frac{4077D_{0}}{2}+\frac{5Y_{3}}{2}+20Y â -2Y.
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