Which of the following is(are) thesolution(s) to 7|X+2|=-49?

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25-04-2021
Mathematics

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Which of the following is(are) thesolution(s) to 7|X+2|=-49?

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samanthasuarez521 samanthasuarez521 · Answer 1 · 2021-04-25T06:10:53+02:00

samanthasuarez521 samanthasuarez521

25-04-2021

Answer: A. X=5,-9

7|x+2|=-49 ==> |x+2|=-49/7 ==> |x+2|=-7
==> |x+2-2|=-7-2 ==> |x|=-9 => x=-9

7|x+2|=49 ==> |x+2|=49/7 ==> |x+2|=7
==> |x+2-2|=7-2 ==> |x|=5 ==> x=5

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