Opposite of positive is negative and vise versa for negative. You are required to find the value of x that makes is -3. So your answer is C.-3/2
Answer: False
Nothing is 100% certain no matter how sure it seems. This is especially true with statistics. There's always going to be some amount of error. The goal is to minimize the error as much as possible in the best cost-effective manner.
I havent done this stuff but I'm assuming x has to be equal to the number its being subtracted from so that the end result would be 0.