Datrys [35Y_{3}+(-9Y_{3})-25Y]-(+2XY-3Y_{3}-5Y)=-2.0385D_{0}

$$[ 35 Y _ { 3 } + ( - 9 Y _ { 3 } ) - 25 Y ] - ( + 2 X Y - 3 Y _ { 3 } - 5 Y ) = - 2.0385 D _ { 0 }$$

Datrys ar gyfer D_0

$$D_{0}=\frac{4000XY+40000Y-58000Y_{3}}{4077}$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfuno 35Y_{3} a -9Y_{3} i gael 26Y_{3}.

$$26Y_{3}-25Y-\left(2XY-3Y_{3}-5Y\right)=-2.0385D_{0}$$

I ddod o hyd i wrthwyneb 2XY-3Y_{3}-5Y, dewch o hyd i wrthwyneb pob term.

$$26Y_{3}-25Y-2XY+3Y_{3}+5Y=-2.0385D_{0}$$

Cyfuno 26Y_{3} a 3Y_{3} i gael 29Y_{3}.

$$29Y_{3}-25Y-2XY+5Y=-2.0385D_{0}$$

Cyfuno -25Y a 5Y i gael -20Y.

$$29Y_{3}-20Y-2XY=-2.0385D_{0}$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$-2.0385D_{0}=29Y_{3}-20Y-2XY$$

Rhannu dwy ochr hafaliad â -2.0385, sydd yr un peth â lluosi’r ddwy ochr â chilydd y ffracsiwn.

$$\frac{-2.0385D_{0}}{-2.0385}=\frac{29Y_{3}-20Y-2XY}{-2.0385}$$

Mae rhannu â -2.0385 yn dad-wneud lluosi â -2.0385.

$$D_{0}=\frac{29Y_{3}-20Y-2XY}{-2.0385}$$

Rhannwch 29Y_{3}-20Y-2XY â -2.0385 drwy luosi 29Y_{3}-20Y-2XY â chilydd -2.0385.

$$D_{0}=\frac{4000XY+40000Y-58000Y_{3}}{4077}$$

Datrys ar gyfer X

$$\left\{\begin{matrix}X=\frac{4077D_{0}-40000Y+58000Y_{3}}{4000Y}\text{, }&Y\neq 0\\X\in \mathrm{R}\text{, }&Y_{3}=-\frac{4077D_{0}}{58000}\text{ and }Y=0\end{matrix}\right.$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfuno 35Y_{3} a -9Y_{3} i gael 26Y_{3}.

$$26Y_{3}-25Y-\left(2XY-3Y_{3}-5Y\right)=-2.0385D_{0}$$

I ddod o hyd i wrthwyneb 2XY-3Y_{3}-5Y, dewch o hyd i wrthwyneb pob term.

$$26Y_{3}-25Y-2XY+3Y_{3}+5Y=-2.0385D_{0}$$

Cyfuno 26Y_{3} a 3Y_{3} i gael 29Y_{3}.

$$29Y_{3}-25Y-2XY+5Y=-2.0385D_{0}$$

Cyfuno -25Y a 5Y i gael -20Y.

$$29Y_{3}-20Y-2XY=-2.0385D_{0}$$

Tynnu 29Y_{3} o'r ddwy ochr.

$$-20Y-2XY=-2.0385D_{0}-29Y_{3}$$

Ychwanegu 20Y at y ddwy ochr.

$$-2XY=-2.0385D_{0}-29Y_{3}+20Y$$

Mae'r hafaliad yn y ffurf safonol.

$$\left(-2Y\right)X=-\frac{4077D_{0}}{2000}+20Y-29Y_{3}$$

Rhannu’r ddwy ochr â -2Y.

$$\frac{\left(-2Y\right)X}{-2Y}=\frac{-\frac{4077D_{0}}{2000}+20Y-29Y_{3}}{-2Y}$$

Mae rhannu â -2Y yn dad-wneud lluosi â -2Y.

$$X=\frac{-\frac{4077D_{0}}{2000}+20Y-29Y_{3}}{-2Y}$$

Rhannwch -29Y_{3}-\frac{4077D_{0}}{2000}+20Y â -2Y.

$$X=\frac{\frac{29Y_{3}}{2}+\frac{4077D_{0}}{4000}}{Y}-10$$