Select all the expressions that are equivalent to 9 + 7x - 3y. [Choice A) 9 + 7x - 3y
(Choice B] 9 - 7x - 3y
(Choice C) 9 - 7x + 3y
(Choice D) 9 + 7x + (-3y)
(Choice E) 9 - (-7)x - 3y

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Ответ:

xXCoryxKenshinXx

25.03.2020

Mathematics

$\huge\boxed{\sf x = 8a}$

Step-by-step explanation:

$\sf \frac{3}{a} x - 4 = 20\\\\Add \ 4 \ to \ both \ sides\\\\\frac{3}{a} x = 20+4\\\\\frac{3}{a} x = 24\\\\Multiply \ both \ sides \ by \ a\\\\3x = 24 * a\\\\Divide \ 3 \ to \ both \ sides\\\\x = 24a / 3\\\\x = 8a\\\\\rule[225]{225}{2}$

Hope this helped!

~AH1807

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Select all the expressions that are equivalent to 9 + 7x - 3y. [Choice A) 9 + 7x - 3y (Choice B] 9 - 7x - 3y (Choice C) 9 - 7x + 3y (Choice D) 9 + 7x + (-3y) (Choice E) 9 - (-7)x - 3y