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18-12-2019
Mathematics

contestada

What value of x makes this statement true?
3x + 4 = 9x -8

A. -2
B. 1
C. 2
D. 12

Respuesta :

marcthemathtutor marcthemathtutor

18-12-2019

Answer:

C. 2

Step-by-step explanation:

3x + 4 = 9x - 8 (subtract 4 from both sides)

3x = 9x - 8 - 4

3x = 9x - 12 (subtract 9x from both sides)

3x - 9x = -12

-6x = -12 (divide both sides by -6)

x = -12 / (-6)

x = 2

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