PetraGehrke PetraGehrke

11-06-2014
Mathematics

contestada

What is the value of x when 2x + 3 = 3x – 4 ?
A. –7
B. -1/5
C. 1
E. 7

Respuesta :

konrad509 konrad509

11-06-2014

[tex]2x + 3 = 3x - 4\\ 3x-2x=3+4\\ x=7[/tex]

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Аноним Аноним

14-06-2014

[tex]2x+3=3x-4\ \ \ \ /-3\\2x+3-3=3x-4-3\\2x=3x-7\ \ \ \ /-3x\\2x-3x=3x-3x-7\\-x=-7\ \ \ \ /:(-1)\\x=7\\\\Answer:E[/tex]

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