Solve 1-{2+[-6-(2+-5)-(7--3)+1]-[(-12-15)+29]}=

$$1 - \{ 2 + [ - 6 - ( 2 + - 5 ) - ( 7 - - 3 ) + 1 ] - [ ( - 12 - 15 ) + 29 ] \} =$$

Evaluate

$$13$$

Solution Steps

Subtract 5 from 2 to get -3.

$$1-\left(2+-6-\left(-3\right)-\left(7-\left(-3\right)\right)+1-\left(-12-15+29\right)\right)$$

The opposite of -3 is 3.

$$1-\left(2+-6+3-\left(7-\left(-3\right)\right)+1-\left(-12-15+29\right)\right)$$

Add -6 and 3 to get -3.

$$1-\left(2+-3-\left(7-\left(-3\right)\right)+1-\left(-12-15+29\right)\right)$$

The opposite of -3 is 3.

$$1-\left(2+-3-\left(7+3\right)+1-\left(-12-15+29\right)\right)$$

Add 7 and 3 to get 10.

$$1-\left(2-3-10+1-\left(-12-15+29\right)\right)$$

Subtract 10 from -3 to get -13.

$$1-\left(2-13+1-\left(-12-15+29\right)\right)$$

Subtract 13 from 2 to get -11.

$$1-\left(-11+1-\left(-12-15+29\right)\right)$$

Add -11 and 1 to get -10.

$$1-\left(-10-\left(-12-15+29\right)\right)$$

Subtract 15 from -12 to get -27.

$$1-\left(-10-\left(-27+29\right)\right)$$

Add -27 and 29 to get 2.

$$1-\left(-10-2\right)$$

Subtract 2 from -10 to get -12.

$$1-\left(-12\right)$$

The opposite of -12 is 12.

$$1+12$$

Add 1 and 12 to get 13.

$$13$$

Factor

$$13$$