TRY IT:
This is
why, when we've got something like
I always tell you
ditch the smaller
x guy first! See what happens if we
start by ditching the 3x instead:
Now, we'd have to
divide by a negative... And, if we forget to flip the sign,
we're dead. Trust me, I've graded thousands of these
problems and even the best students forget to flip signs when
they are nervous. It's best to avoid it if you can - just
one less thing to worry about!
Continued on the
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