Solve -84-(-99):(-11):(-3)+(+63):(-21)=

$$- 84 - ( - 99 ) : ( - 11 ) : ( - 3 ) + ( + 63 ) : ( - 21 ) =$$

Evaluate

$$-84$$

Solution Steps

Express \frac{\frac{-99}{-11}}{-3} as a single fraction.

$$-84-\frac{-99}{-11\left(-3\right)}+\frac{63}{-21}$$

Multiply -11 and -3 to get 33.

$$-84-\frac{-99}{33}+\frac{63}{-21}$$

Divide -99 by 33 to get -3.

$$-84-\left(-3\right)+\frac{63}{-21}$$

The opposite of -3 is 3.

$$-84+3+\frac{63}{-21}$$

Add -84 and 3 to get -81.

$$-81+\frac{63}{-21}$$

Divide 63 by -21 to get -3.

$$-81-3$$

Subtract 3 from -81 to get -84.

$$-84$$

Factor

$$-84$$