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What value of x is in the solution set of 9(2x + 1) < 9x – 18? –4 –3 –2 –1

What value of x is in the solution set of 9(2x + 1) < 9x – 18? –4 –3 –2 –1
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What value of x is in the solution set of 9(2x + 1) < 9x – 18? –4 –3 –2 –1

User Menol
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8.1k points

2 Answers

6 votes

e d g e n u i t y should be A

User Fengtao Ding
by
8.2k points
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9(2x+1) \ \textless \ 9x-18\\\\(9)(2x)+(9)(1) \ \textless \ 9x-18\\\\18x+9 \ \textless \ 9x-18\ \ \ |-9\\\\18x \ \textless \ 9x-27\ \ \ \ |-9x\\\\9x \ \textless \ -27\ \ \ \ |:9\\\\x \ \textless \ -3\\\\Answer:\ -4
User Vahe Muradyan
by
8.1k points
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