Having trouble with a linear equation.
The equation I have been given is:
$5n+7 = 31-3n$
I keep coming up with $n = 12$ which makes sense because I was told in the following example to subtract the like terms.
Which is of course $x = -4$.
So I am being told that $n = 3$ which I can understand why it would when you ADD the like terms in the first equation but I was told to subtract. Am I wrong? or is this answer wrong - and if I am wrong what rule am I missing that would have me add like terms instead?