Answer:
-80
Step-by-step explanation:
Use properties of addition to evaluate the expression.
[tex](-64) + ((-36) +20)[/tex]
Remove the parenthesis and simplify the number
positive times negative is negative
[tex]-64-36+20[/tex]
Now simplify the expression
When the signs are same then we add the numbers and put the same sign
-64 and -36 becomes -100
[tex]-64-36+20[/tex]
[tex]-100+20[/tex]
-80
