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ollegr [7]
2 years ago
5

Simplify 35x-35 over 14x-49

Mathematics
1 answer:
artcher [175]2 years ago
7 0

Answer:  Distributive property  a(b+c) = ab + ac

-5(7)x + 7(7) = -35x + 49 (D)

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I need help, please and thank you
borishaifa [10]

Answer:

See below ↓

Step-by-step explanation:

<u>Problem</u>

  • <u />\frac{5x}{x+7} + \frac{7}{x}

<u>Work</u>

  • <u />\frac{5x(x)+7(x+7)}{x(x+7)}
  • \frac{5x^{2} +7x+49}{x(x+7)}
  • The student's mistake was that instead of taking x(x + 7) as the LCM (Least Common Multiple), he took x + 7, which is not possible in this case

<u>Solution</u>

  • <u />\frac{5x^{2} +7x+49}{x(x+7)}
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