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05-06-2018
Mathematics

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What value of x is in the solution set of -5x-15>10+20x

Respuesta :

05-06-2018

[tex]-5x-15 > 10+20x\ \ \ \ |+15\\\\-5x > 25+20x\ \ \ \ |-20x\\\\-25x > 25\ \ \ |change\ the\ signs\\\\25x < -25\ \ \ \ |:25\\\\x < -1\to x\in(-\infty;-1)[/tex]

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