Question

Evaluate:-19 - (-10) + (20) - (30) - (-15)
A) -4
B) -3
C) 3
D) 4

Answer 1

Answer: A) -4

Step-by-step explanation: usatestprep approved

Answer 2

So firstly, remember that subtracting a negative number is the same as adding a positive number so our expression will look like this:

`-19+10+20-30+15`

Now solve as such:

`\underbrace{-19+10}_(-9)+20-30+15\\\\\underbrace{-9+20}_(11)-30+15\\\\\underbrace{11-30}_(-19)+15\\\\\underbrace{-19+15}_(-4)\\\\-4`

Your answer is -4, or A.