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11-10-2019
Mathematics

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Complete the proof. If 7+5x+9=−3x , then x=−2 .

Respuesta :

11-10-2019

Answer:

7+5x+9=−3x

7+5(-2)+9=−3(-2)

7+-10+9=6

-3+9=6

6=6

Step-by-step explanation:

7+5x+9=−3x

7+5(-2)+9=−3(-2)

7+-10+9=6

-3+9=6

6=6

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