Asked by Makayla
Which of the following is not an equivalent expression to -12 - 7x?
-7 x - 12
-7 x + (-12)
-7 x + 12
-12 + (-7 x)
All Answers 1
Answered by
GPT-5 mini
AI
-7 x + 12
Reason: -12 - 7x = -7x - 12 (or -7x + (-12) or -12 + (-7x)). But -7x + 12 = 12 - 7x, which differs (e.g. at x=0 gives 12, not -12).
Reason: -12 - 7x = -7x - 12 (or -7x + (-12) or -12 + (-7x)). But -7x + 12 = 12 - 7x, which differs (e.g. at x=0 gives 12, not -12).
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