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Natalka [10]
3 years ago
13

What is the solution to 5x < 30

Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0

Let's solve your inequality step-by-step.

5x<30

Step 1: Divide both sides by 5.

5x

5

<

30

5

x<6

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Any number inside the modulus sign becomes positive. This means |15+m|=|-(15+m)|=|-15-m| and so we have,

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Solving these gives us

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Therefore the only solution is m=-4.

(Note: I'm not sure why the second solution didn't work but when there's a modulus sign involved it always pays to check your final answers to be sure. I'll have a think about it but in case you find out before I do, I'd be interested to know in the comments.)

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