Datrys 11/9y+7/18y-5/27y=11/4

$$1 \frac { 1 } { 9 } y + \frac { 7 } { 18 } y - \frac { 5 } { 27 } y = 1 \frac { 1 } { 4 }$$

Datrys ar gyfer y

$$y=\frac{135}{142}\approx 0.950704225$$

Camau ar gyfer Datrys Hafaliad Llinol

Lluoswch ddwy ochr yr hafaliad wrth 108, lluoswm cyffredin lleiaf 9,18,27,4.

$$12\left(1\times 9+1\right)y+42y-20y=27\left(1\times 4+1\right)$$

Lluosi 1 a 9 i gael 9.

$$12\left(9+1\right)y+42y-20y=27\left(1\times 4+1\right)$$

Adio 9 a 1 i gael 10.

$$12\times 10y+42y-20y=27\left(1\times 4+1\right)$$

Lluosi 12 a 10 i gael 120.

$$120y+42y-20y=27\left(1\times 4+1\right)$$

Cyfuno 120y a 42y i gael 162y.

$$162y-20y=27\left(1\times 4+1\right)$$

Cyfuno 162y a -20y i gael 142y.

$$142y=27\left(1\times 4+1\right)$$

Lluosi 1 a 4 i gael 4.

$$142y=27\left(4+1\right)$$

Adio 4 a 1 i gael 5.

$$142y=27\times 5$$

Lluosi 27 a 5 i gael 135.

$$142y=135$$

Rhannu’r ddwy ochr â 142.

$$y=\frac{135}{142}$$