Question

What is the value of x?

14-x=21
x=


i think x=7

Answer 1

am i correct this time @iGreen

Answer 2

Nope..

\(14 - x = 21\)

Subtract 14 to both sides:

\(-x = 21 - 14\)

Answer 3

You are close, but you have to remember, there's a negative sign on the x.

Answer 4

^^^

Answer 5

dang so it would be -7 again?!

Answer 6

Yup!

Answer 7

You subtracted 21 - 14, which equals 7..that's correct, but it gives us:

\(-x = 7\)

Now we have to multiply -1 to both sides to get rid of the negative sign on 'x'.

\(x = -7\)

Answer 8

lol omg

Answer 9

You got it! :D

Answer 10

thanks both of you