Datrys 1-p/6+2p/3-1-7p/4=21/6

$$\frac { 1 - p } { 6 } + \frac { 2 p } { 3 } - \frac { 1 - 7 p } { 4 } = 2 \frac { 1 } { 6 }$$

Datrys ar gyfer p

$$p=1$$

Camau ar gyfer Datrys Hafaliad Llinol

Lluoswch ddwy ochr yr hafaliad wrth 12, lluoswm cyffredin lleiaf 6,3,4.

$$2\left(1-p\right)+4\times 2p-3\left(1-7p\right)=2\left(2\times 6+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi 2 â 1-p.

$$2-2p+4\times 2p-3\left(1-7p\right)=2\left(2\times 6+1\right)$$

Lluosi 4 a 2 i gael 8.

$$2-2p+8p-3\left(1-7p\right)=2\left(2\times 6+1\right)$$

Cyfuno -2p a 8p i gael 6p.

$$2+6p-3\left(1-7p\right)=2\left(2\times 6+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi -3 â 1-7p.

$$2+6p-3+21p=2\left(2\times 6+1\right)$$

Tynnu 3 o 2 i gael -1.

$$-1+6p+21p=2\left(2\times 6+1\right)$$

Cyfuno 6p a 21p i gael 27p.

$$-1+27p=2\left(2\times 6+1\right)$$

Lluosi 2 a 6 i gael 12.

$$-1+27p=2\left(12+1\right)$$

Adio 12 a 1 i gael 13.

$$-1+27p=2\times 13$$

Lluosi 2 a 13 i gael 26.

$$-1+27p=26$$

Ychwanegu 1 at y ddwy ochr.

$$27p=26+1$$

Adio 26 a 1 i gael 27.

$$27p=27$$

Rhannu’r ddwy ochr â 27.

$$p=\frac{27}{27}$$

Rhannu 27 â 27 i gael 1.

$$p=1$$