Question

What value of x makes the equation true?

–8.6 = –4.1 + x

A.
–12.7

B.
–4.5

C.
4.5

D.
12.7

Answer 1

The simple way would be to just try every single one, but I'm gonna tell you how to solve this stuff anyways. So basically, pretend x is a _________ (blank). You've probably done this hundreds of times in school before. Now, you can simply just do -8.6 minus -4.1, and you get the answer -4.5. Make sense? That would mean that it's B.

Answer 2

B. -4.5

You need to isolate x by subtracting -4.1 and to keep the equation equal you need to do this on both sides.