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5 votes
3|x + 7| = 21



PLEASE HELP ASAP

User Guish
by
7.9k points

1 Answer

2 votes

Answer:

x=0, x = -14

Explanation:

You can first divide each side with 3, which will result in :

|x+7| = 7

Then there is two cases where x is positive and x is negative :

x+7 = 7

and

x+7 = -7

x = 0

x = -14

User Pamil
by
8.1k points

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