3 years ago

If 3x=-21 , then x=7

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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