Answer
$-4$
Work Step by Step
The addends (numbers being added have) different signs.
To add two numbers with different signs, perform the following steps:
(1) Subtract their absolute values.
$|-7|-|3|=7-3=4$
(2) Use the sign of the number with the bigger absolute value.
$-7+3=-4$
Thus, the sum is $-4$.
