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ArtBurdock ArtBurdock
  • 13-04-2014
  • Mathematics
Answered

The inequality 3(x + 2) > 4(x – 3) is equivalent to which of the following inequalities?

F. x < –6

G. x < 5

H. x < 9

J. x < 14

K. x < 18

Can anyone explain me how to make this one step by step?

Verified Answer :

Anonymous Anonymous
  • 13-04-2014

\(3(x+2) > 4(x-3)\\\\3\cdot x+3\cdot2 > 4\cdot x+4\cdot(-3)\\\\3x+6 > 4x-12\ \ \ /-6\ \ \ /-4x\\\\3x-4x > -12-6\\\\-x > -18\ \ \ /:(-1) < 0\ then\ changing\ symbols\ >\ \to\ <\\\\x < 18\\\\Answer:K\)

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