algebra
posted by Poochie on .
Pam scored 78 on a test that had 4 fillin questions worth 7 points each and 24 multiple choice questions worth 3 points each. She had one fillin question wrong.How many multiple choice questions did Pam get right?

One fillin question wrong, so she got
1007=93 before multiple choice (78).
So she lost 9378=15 on multiple choice.
How many multiplechoice did she get wrong?