Question

I would really like some help with this problem, if anyone can help me with this problem I will appreciate it, thank you advance.

Answer 1

The mistake is in step 2.
You cannot combine two terms into one;
2(-20) + 3(-25) doesn’t equal (3 + 2)(-20 + -25)
Evaluate each term separately:
(-40) + (-75) = -115
The way it was combined would be: 5 x (-45) = -225.
A difference of
-225 - (-115) = -110
The same applies to the last 2 terms.
You have to evaluate each term separately.
(-40) + (-75) + (100) + (200) = 300 - 115 = 185
Thus 185 is the correct answer.
Hope this helps :)