Solve -9(-5+3-2/-2)+6[(-9)(-15/3)]-[-20/5(-4)]=

$$- 9 ( \frac { - 5 + 3 - 2 } { - 2 } ) + 6 [ ( - 9 ) ( \frac { - 15 } { 3 } ) ] - [ \frac { - 20 } { 5 ( - 4 ) } ] =$$

Evaluate

$$251$$

Solution Steps

Add -5 and 3 to get -2.

$$-9\times \frac{-2-2}{-2}+6\left(-9\right)\times \frac{-15}{3}-\frac{-20}{5\left(-4\right)}$$

Subtract 2 from -2 to get -4.

$$-9\times \frac{-4}{-2}+6\left(-9\right)\times \frac{-15}{3}-\frac{-20}{5\left(-4\right)}$$

Divide -4 by -2 to get 2.

$$-9\times 2+6\left(-9\right)\times \frac{-15}{3}-\frac{-20}{5\left(-4\right)}$$

Multiply -9 and 2 to get -18.

$$-18+6\left(-9\right)\times \frac{-15}{3}-\frac{-20}{5\left(-4\right)}$$

Multiply 6 and -9 to get -54.

$$-18-54\times \frac{-15}{3}-\frac{-20}{5\left(-4\right)}$$

Divide -15 by 3 to get -5.

$$-18-54\left(-5\right)-\frac{-20}{5\left(-4\right)}$$

Multiply -54 and -5 to get 270.

$$-18+270-\frac{-20}{5\left(-4\right)}$$

Add -18 and 270 to get 252.

$$252-\frac{-20}{5\left(-4\right)}$$

Multiply 5 and -4 to get -20.

$$252-\frac{-20}{-20}$$

Divide -20 by -20 to get 1.

$$252-1$$

Subtract 1 from 252 to get 251.

$$251$$

Factor

$$251$$