Colette29 Colette29
  • 07-06-2018
  • Mathematics
contestada

express the sum in the simplest form 3x / x + 5 + 7 / x + 5

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mathstudent55
mathstudent55 mathstudent55
  • 07-06-2018
I think you mean:

3x / (x + 5) + 7 / (x + 5)

[tex] \dfrac{3x}{x + 5} + \dfrac{7}{x + 5} [/tex]

Since the denominators are the same, the denominators are the common denominator. We add the numerators and keep the common denominator.

[tex] \dfrac{3x}{x + 5} + \dfrac{7}{x + 5} = \dfrac{3x + 7}{x + 5} [/tex]
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