Question

help me on this one i want to understand it more
(diffrent question) x − 7 = 14

Answer 1

You need to solve the equation
x - 7 = 14?

Answer 2

yea

Answer 3

x − 7 = 14

First you need to cancel out 7 so x stands alone. And to do that, you need to do the opposite of of the operation (-)

What you do on one side, you do to the other.

So:

x − 7 = 14
+7 +7
-------------
x= ?

Answer 4

not sure if i got it right i got 21

Answer 5

it's correct ^^

You gotta believe in yourself (:

Answer 6

Look at the left side and see what is being done to x.
7 is being subtracted from x.
To undo a subtraction, you do the opposite operation which is addition.
That means you need to add 7 to x - 7 to eliminate the subtraction of 7.
x - 7 + 7 = x + 0 = x.
What you do to one side of an equation, you must also do to the other side also.
Since you need to add 7 to the left side, you must add 7 to the right side too.

x - 7 = 14
+7 +7
---------------
x = 21

The solution is x = 21