14-11-2019
Mathematics

contestada

-3x+7=28 solve for x

Respuesta :

profarouk profarouk

04-07-2022

Answer:

-7

Step-by-step explanation:

-3x+7=28

⇔ -3x = 28 - 7

⇔ -3x = 21

⇔ x = 21/(-3)

⇔ x = -(21/3)

⇔ x = -7

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