Answer:
x = 7
just let the unknown be x and you multiply x by 3 making it 3x
subtract 3x from 15 equating it with 6
ie
15 - 3x = -6
3x = 15 + 6
3x = 21
divide both sides by 3
7
Explanation:
Turn the words into algebra
3 times n is subtracted from 15 so 15-3n = -6, so
-3n = -6 - 15
-3n = -21 so n = 7
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