Solve 4-2-12-[2-6(4+20)+5]-13+43

$$4 - 2 - 12 - [ 2 - 6 ( 4 + 20 ) + 5 ] - 13 + 43$$

Evaluate

$$157$$

Solution Steps

Subtract 2 from 4 to get 2.

$$2-12-\left(2-6\left(4+20\right)+5\right)-13+43$$

Subtract 12 from 2 to get -10.

$$-10-\left(2-6\left(4+20\right)+5\right)-13+43$$

Add 4 and 20 to get 24.

$$-10-\left(2-6\times 24+5\right)-13+43$$

Multiply 6 and 24 to get 144.

$$-10-\left(2-144+5\right)-13+43$$

Subtract 144 from 2 to get -142.

$$-10-\left(-142+5\right)-13+43$$

Add -142 and 5 to get -137.

$$-10-\left(-137\right)-13+43$$

The opposite of -137 is 137.

$$-10+137-13+43$$

Add -10 and 137 to get 127.

$$127-13+43$$

Subtract 13 from 127 to get 114.

$$114+43$$

Add 114 and 43 to get 157.

$$157$$

Factor

$$157$$