Solve 11+{-15+[+5-12+(-8-13)-(-5-18-2)]+8}

$$11 + \{ - 15 + [ + 5 - 12 + ( - 8 - 13 ) - ( - 5 - 18 - 2 ) ] + 8 \}$$

Evaluate

$$1$$

Solution Steps

Subtract 15 from 11 to get -4.

$$-4+5-12-8-13-\left(-5-18-2\right)+8$$

Subtract 12 from 5 to get -7.

$$-4+-7-8-13-\left(-5-18-2\right)+8$$

Subtract 8 from -7 to get -15.

$$-4+-15-13-\left(-5-18-2\right)+8$$

Subtract 13 from -15 to get -28.

$$-4+-28-\left(-5-18-2\right)+8$$

Subtract 18 from -5 to get -23.

$$-4+-28-\left(-23-2\right)+8$$

Subtract 2 from -23 to get -25.

$$-4+-28-\left(-25\right)+8$$

The opposite of -25 is 25.

$$-4-28+25+8$$

Add -28 and 25 to get -3.

$$-4-3+8$$

Subtract 3 from -4 to get -7.

$$-7+8$$

Add -7 and 8 to get 1.

$$1$$

Factor

$$1$$