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OpenStudy (anonymous):
For which equation is x = 9 a solution? A. 3x – 7 = –34 B. x – 9 = 1 C. x/9 - 8 = 9 D. 4x + 5 = 41
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OpenStudy (ivettef365):
substitute x for 9, to see which equation is true, for example, lets take the first one 3x - 7 = -34 3(9) - 7 = 34 27 - 7 = 34 20 = 34 (not true) keep trying with the other ones.
OpenStudy (anonymous):
okay, thanks
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