Datrys (-06x-7/2y)-(-7/5x-25z)+(+12x-16y)

$$(-06x- \frac{ 7 }{ 2 } y)-(- \frac{ 7 }{ 5 } x-25z)+(+12x-16y)$$

Enrhifo

$$\frac{67x}{5}-\frac{39y}{2}+25z$$

Camau Ateb

Lluosi 0 a 6 i gael 0.

$$0x-\frac{7}{2}y-\left(-\frac{7}{5}x-25z\right)+12x-16y$$

Mae lluosi unrhyw beth â sero yn rhoi sero.

$$0-\frac{7}{2}y-\left(-\frac{7}{5}x-25z\right)+12x-16y$$

I ddod o hyd i wrthwyneb -\frac{7}{5}x-25z, dewch o hyd i wrthwyneb pob term.

$$0-\frac{7}{2}y-\left(-\frac{7}{5}x\right)-\left(-25z\right)+12x-16y$$

Gwrthwyneb -\frac{7}{5}x yw \frac{7}{5}x.

$$0-\frac{7}{2}y+\frac{7}{5}x-\left(-25z\right)+12x-16y$$

Gwrthwyneb -25z yw 25z.

$$0-\frac{7}{2}y+\frac{7}{5}x+25z+12x-16y$$

Cyfuno \frac{7}{5}x a 12x i gael \frac{67}{5}x.

$$0-\frac{7}{2}y+\frac{67}{5}x+25z-16y$$

Cyfuno -\frac{7}{2}y a -16y i gael -\frac{39}{2}y.

$$0-\frac{39}{2}y+\frac{67}{5}x+25z$$

Mae adio unrhyw beth at sero yn cyrraedd ei swm ei hun.

$$-\frac{39}{2}y+\frac{67}{5}x+25z$$

Ehangu

$$\frac{67x}{5}-\frac{39y}{2}+25z$$

Camau Ateb

Lluosi 0 a 6 i gael 0.

$$0x-\frac{7}{2}y-\left(-\frac{7}{5}x-25z\right)+12x-16y$$

Mae lluosi unrhyw beth â sero yn rhoi sero.

$$0-\frac{7}{2}y-\left(-\frac{7}{5}x-25z\right)+12x-16y$$

I ddod o hyd i wrthwyneb -\frac{7}{5}x-25z, dewch o hyd i wrthwyneb pob term.

$$0-\frac{7}{2}y-\left(-\frac{7}{5}x\right)-\left(-25z\right)+12x-16y$$

Gwrthwyneb -\frac{7}{5}x yw \frac{7}{5}x.

$$0-\frac{7}{2}y+\frac{7}{5}x-\left(-25z\right)+12x-16y$$

Gwrthwyneb -25z yw 25z.

$$0-\frac{7}{2}y+\frac{7}{5}x+25z+12x-16y$$

Cyfuno \frac{7}{5}x a 12x i gael \frac{67}{5}x.

$$0-\frac{7}{2}y+\frac{67}{5}x+25z-16y$$

Cyfuno -\frac{7}{2}y a -16y i gael -\frac{39}{2}y.

$$0-\frac{39}{2}y+\frac{67}{5}x+25z$$

Mae adio unrhyw beth at sero yn cyrraedd ei swm ei hun.

$$-\frac{39}{2}y+\frac{67}{5}x+25z$$