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artcher [175]
3 years ago
14

If 3x=-21 , then x=7

Geography
2 answers:
Aleks [24]3 years ago
8 0

Answer:

3x = -21        Equation

3x/3x = - 21/3x      Divide the 3x by istself so it cancels out. and what you do to                                          .                             one side you must do to the other so  -21/3x

x = -7     Aswer to -21/3

Explanation:

Molodets [167]3 years ago
7 0

Answer:

it is -7

Explanation:

It is -7 because the answer ended up being a negative and 3×-7=-21

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