Solve 1-(2+(-6(2+5)-(7--3)+1+(-12-23)-15

$$1-(2+(-6(2+5)-(7--3)+1+(-12-23)-15$$

Evaluate

$$100$$

Solution Steps

Add 2 and 5 to get 7.

$$1-\left(2+-6\times 7-\left(7-\left(-3\right)\right)+1-12-23-15\right)$$

Multiply -6 and 7 to get -42.

$$1-\left(2+-42-\left(7-\left(-3\right)\right)+1-12-23-15\right)$$

The opposite of -3 is 3.

$$1-\left(2+-42-\left(7+3\right)+1-12-23-15\right)$$

Add 7 and 3 to get 10.

$$1-\left(2-42-10+1-12-23-15\right)$$

Subtract 10 from -42 to get -52.

$$1-\left(2-52+1-12-23-15\right)$$

Subtract 52 from 2 to get -50.

$$1-\left(-50+1-12-23-15\right)$$

Add -50 and 1 to get -49.

$$1-\left(-49-12-23-15\right)$$

Subtract 12 from -49 to get -61.

$$1-\left(-61-23-15\right)$$

Subtract 23 from -61 to get -84.

$$1-\left(-84-15\right)$$

Subtract 15 from -84 to get -99.

$$1-\left(-99\right)$$

The opposite of -99 is 99.

$$1+99$$

Add 1 and 99 to get 100.

$$100$$

Factor

$$2^{2}\times 5^{2}$$