Datrys -1-(1-05)*1/3*[19-(-5)div(-1/5)]

$$- 1 - ( 1 - 05 ) \times \frac { 1 } { 3 } \times [ 19 - ( - 5 ) \div ( - \frac { 1 } { 5 } ) ]$$

Enrhifo

$$1$$

Camau Ateb

Lluosi 0 a 5 i gael 0.

$$-1-\left(1-0\right)\times \frac{1}{3}\left(19-\frac{-5}{-\frac{1}{5}}\right)$$

Tynnu 0 o 1 i gael 1.

$$-1-1\times \frac{1}{3}\left(19-\frac{-5}{-\frac{1}{5}}\right)$$

Lluosi 1 a \frac{1}{3} i gael \frac{1}{3}.

$$-1-\frac{1}{3}\left(19-\frac{-5}{-\frac{1}{5}}\right)$$

Rhannwch -5 â -\frac{1}{5} drwy luosi -5 â chilydd -\frac{1}{5}.

$$-1-\frac{1}{3}\left(19-\left(-5\left(-5\right)\right)\right)$$

Lluosi -5 a -5 i gael 25.

$$-1-\frac{1}{3}\left(19-25\right)$$

Tynnu 25 o 19 i gael -6.

$$-1-\frac{1}{3}\left(-6\right)$$

Lluosi \frac{1}{3} a -6 i gael \frac{-6}{3}.

$$-1-\frac{-6}{3}$$

Rhannu -6 â 3 i gael -2.

$$-1-\left(-2\right)$$

Gwrthwyneb -2 yw 2.

$$-1+2$$

Adio -1 a 2 i gael 1.

$$1$$

Ffactor

$$1$$