I just gave you 3 points Mari, 
I don't give points as easily as CPhill does. I like people to really earn them.
I am really pleased that you explained how you got your answer. It was your explanation - not your answer that earned you your points with me.
You sort of did what CPhill did - I will try to explain.
$$\dfrac{(x+4)}{2}=7$$
You sort of said : What divided by 2=7 and the answer is 14/2 is 7 This means that x+4=14
CPhill said : I want to get the x+4 on its own so how do I get rid of the 2 Umm I muliply by 2 but if I multiply the left side by 2 then i have to multiply the right side by2 as well. This keeps the equation balanced!
$$\begin{array}{rlll}
\frac{x+4}{2}&=&7\\\\
\frac{x+4}{2}\times 2&=&7\times 2\\\\
x+4&=&14\qquad \qquad \mbox{On the left the 2s cancel out, that is what CPhill did it for!}\\
\end{array}$$
Next you said : What + 4=14 and the answer is obviously 10 SO x=10
CPhill said: x+4=14 I need the x by itself so how do I get rid of the +4 Umm I know, I'll take it away (+4-4=0)
But if I take it away from the left side then I have to take it away from the right side too. I have to keep the equation balanced!
x+4-4=14-4
x=10
See you sort of did the same thing only CPhill did it in a more formal way.
You need to learn how to do it the formal way or you will not be able to solve difficult equations later on.
ALWAYS REMEMBER - EQUATIONS ARE LIKE SCALES, THEY MUST STAY BALANCED AT ALL TIMES!
