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10-11-2019
Mathematics

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An equation is shown. – 4 5 (9x – 20) – 3x = 4 5 x – 6 Choose the value of x that makes this equation true. A. x = –2 B. x = – 1 2 C. x = 1 2 D. x = 2

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shams04 shams04

10-11-2019

Answer: D

Work:
-45(9x-20)-3x = 45x-6
-405x+900-3x = 45x-6
-408x+900 = 45x-6 (combine like terms)
906=453x (add 6 to 900 and -408x to 45x)
2=x ( divid)
X=2

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