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30-03-2017
Mathematics

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3 times a number x, subtracted from 18, is less than −90.
Write an inequality for the statement above.
Find the solution set of the inequality.
Write the solution using a fraction or integer.

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02-04-2017

3 times a number x, subtracted from 18, is less than −90

writing it out

18 - 3x < -90

18 < -90 + 3x

18 + 90 < 3x

3x > 108

x > 36

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