How do you solve 2x-7?

Answer 1

Hi,

I think you forgot to post a critical part of your question. You need to set this expression equal to something in order to solve it for a number or variable.

Please revise your post or e-mail me and I can help you out with your revised question!

Sincerely,

Andrew

Answer 2

Hi

Do you mean 2x - 7 = 0?

If that's what you mean, then this is the answer:

Add 7 to the left side, and add 7 to the right:
2x - 7 + 7 = 0 + 7
2x = 7

Divide both sides by 2:
(2x)/2 = 7/2
x = 7/2

But if you just mean 2x - 7, that can't be solved because it's not an equation. I hope this helps you.

Answer 3

You can't, The expression has to equal to something. such as 2x-7 = (some number).
For example:
2x-7 = n; solve for n.
add 7 to both sides: 2x = n+7
divide both sides by 2. x = (n+7)/2
Now n could be any number such as either 2, 4, 5, 7, ....
You could plug in any number for n and get the answer for the equation. 2x-7 = 5. Just plug in 5 for the x = (n+7)/2
so, it would (5+7)/2 = 12/2 = 6.

Answer 4

2x-7 = 2x-7 = 2(x - 3.5)
You do not have an equation to solve.

Answer 5

do you mean how do you solve 2x - 7 = 0 ?

without the = there isnt much to solve.

Answer 6

You don't. 2x-7 is meaningless. However, 2x - 7 = 0 yeilds x = 7/2


added note: it's funny the idiots who give the thumbs down. nice work.

Answer 7

wel first u look at what times 2=7? do 7 Divided by 2 and your answer is what x equals...then check your work by doing 2 times x and if it equals 7...YOUR RIGHT!! by the way the x most likely will be a decimal...i think lol


Hope i can help!! =]

Answer 8

2x - 7 what else?? = 0, y ... need the whole problem...

Answer 9

any poistive times a negative is a negative.
so -14 if thats the problem u mean