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Which of the following equation is linear: 2𝑥+𝑥2=3𝑥2+𝑦2=4𝑥=5𝑥

Question

Which of the following equation is linear: 2𝑥+𝑥2=3𝑥2+𝑦2=4𝑥=5𝑥

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Solution

Para determinar cuál de las ecuaciones es lineal, debemos identificar si cada una de ellas puede ser escrita en la forma general de una ecuación lineal, que es 𝑎𝑥 + 𝑏𝑦 = 𝑐, donde 𝑎, 𝑏 y 𝑐 son constantes y 𝑥 y 𝑦 son variables de primer grado.

Analicemos cada una de las ecuaciones:

  1. 2𝑥+𝑥2=32𝑥 + 𝑥^2 = 3

    • Esta ecuación no es lineal porque contiene un término cuadrático (𝑥2𝑥^2).
  2. 𝑥2+𝑦2=4𝑥^2 + 𝑦^2 = 4

    • Esta ecuación no es lineal porque contiene términos cuadráticos (𝑥2𝑥^2 y 𝑦2𝑦^2).
  3. 𝑥=5𝑥 = 5

    • Esta ecuación es lineal porque puede ser escrita en la forma 𝑥5=0𝑥 - 5 = 0, que es una forma lineal con 𝑎=1𝑎 = 1, 𝑏=0𝑏 = 0 y 𝑐=5𝑐 = 5.

Por lo tanto, la ecuación lineal es 𝑥=5𝑥 = 5.

This problem has been solved

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