Solve {2+13*(10-11)+11:2}

$$\{ 2 + 13 \cdot ( 10 - 11 ) + 11 : 2 \}$$

Evaluate

$$-\frac{11}{2}=-5.5$$

Solution Steps

Subtract 11 from 10 to get -1.

$$2+13\left(-1\right)+\frac{11}{2}$$

Multiply 13 and -1 to get -13.

$$2-13+\frac{11}{2}$$

Subtract 13 from 2 to get -11.

$$-11+\frac{11}{2}$$

Convert -11 to fraction -\frac{22}{2}.

$$-\frac{22}{2}+\frac{11}{2}$$

Since -\frac{22}{2} and \frac{11}{2} have the same denominator, add them by adding their numerators.

$$\frac{-22+11}{2}$$

Add -22 and 11 to get -11.

$$-\frac{11}{2}$$

Factor

$$-\frac{11}{2} = -5\frac{1}{2} = -5.5$$