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Panos Rontogiannis · Answer 1 · 2018-07-15T19:51:41+0000

First, you wrote -3x-7<20, that means -3x<20+7
or -3x<27 and we have x>-9
We draw the line of equation x= -9 and we have the set of solution is the haft of the plan on the right of the line x= -9

Which graph shows the solution set of the inequality -3x-7<20-example-1

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