Solve [(-5-3.2)]-[3-(-12)-4*(-7)]}=

$$[ ( - 5 - 3.2 ) ] - [ 3 - ( - 12 ) - 4 \cdot ( - 7 ) ] \} =$$

Evaluate

$$-51.2$$

Solution Steps

Subtract 3.2 from -5 to get -8.2.

$$-8.2-\left(3-\left(-12\right)-4\left(-7\right)\right)$$

The opposite of -12 is 12.

$$-8.2-\left(3+12-4\left(-7\right)\right)$$

Add 3 and 12 to get 15.

$$-8.2-\left(15-4\left(-7\right)\right)$$

Multiply 4 and -7 to get -28.

$$-8.2-\left(15-\left(-28\right)\right)$$

The opposite of -28 is 28.

$$-8.2-\left(15+28\right)$$

Add 15 and 28 to get 43.

$$-8.2-43$$

Subtract 43 from -8.2 to get -51.2.

$$-51.2$$

Factor

$$-51.2$$