-2/5
Step by Step :
18 - 8 = 10
-15 - 10 = -25
10/-25 = -2/5
Answer:

Step-by-step explanation:
Since we have common denominators inside the parentheses, we can combine the denominators. Then, we get the following expression:


Now, we can multiply the expression inside the parentheses by 2.

Since the expression inside the parentheses cannot be <u>simplified further</u>, we can open the parentheses and simplify the expression.

We can combine the denominators as the denominators are the same.

Finally, we can simplify -4 + 3.

Therefore, the simplified expression is (2m - 1)/5.
Learn more about combining like terms: brainly.com/question/13080103
Answer:
None of those that you listed are correct.
Step-by-step explanation:
All of the selections you've shown do not equal to 43. Sorry. :(