Question

2.5 + 2x = 0.5
solve for x

Answer 1

we always try to get x by itself.

so first get rid of the 2.5. do you know how to do thhis part?

Answer 2

...do I subtract 0.5(or 1/2) from it?

Answer 3

2.5 + 2x = 0.5
-2.5 -2.5
------------
2x = -2
2x / 2 = -2 / 2
x = -1

Answer 4

I checked that. It turns out like this:
2.5 + 2(-1) = 0.5
4.5 = 0.5
it's wrong.

Answer 5

How did you get 4.5?
2.5 + 2(-1) = 2.5 + -2 = 0.5

Answer 6

I multiplied 2 by -1, then I added it to 2.5 like the eqaution says...

Answer 7

2 x -1 = -2, so 2.5 + -2 = 0.5

Answer 8

oh! I was doing it wrong. xD haha stupid me. thanks you!

Answer 9

you're welcome! sometimes i do that too ;)

Answer 10

haha I am not exactly a math wizz