Solve 37-(-4)-5-4-9+(-9)+13-(-13)-12=

$$37 - ( - 4 ) - 5 - 4 - 9 + ( - 9 ) + 13 - ( - 13 ) - 12 =$$

Evaluate

$$28$$

Solution Steps

The opposite of -4 is 4.

$$37+4-5-4-9-9+13-\left(-13\right)-12$$

Add 37 and 4 to get 41.

$$41-5-4-9-9+13-\left(-13\right)-12$$

Subtract 5 from 41 to get 36.

$$36-4-9-9+13-\left(-13\right)-12$$

Subtract 4 from 36 to get 32.

$$32-9-9+13-\left(-13\right)-12$$

Subtract 9 from 32 to get 23.

$$23-9+13-\left(-13\right)-12$$

Subtract 9 from 23 to get 14.

$$14+13-\left(-13\right)-12$$

Add 14 and 13 to get 27.

$$27-\left(-13\right)-12$$

The opposite of -13 is 13.

$$27+13-12$$

Add 27 and 13 to get 40.

$$40-12$$

Subtract 12 from 40 to get 28.

$$28$$

Factor

$$2^{2}\times 7$$