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Solve this system of equations using elimination method.Must show work/steps on your work page {6𝑥 +6𝑦=−65𝑥 + 𝑦 =−13(, )

Question

Solve this system of equations using elimination method.Must show work/steps on your work page {6𝑥 +6𝑦=−65𝑥 + 𝑦 =−13(, )

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Solution

Claro, aquí tienes la solución paso a paso utilizando el método de eliminación:

Dado el sistema de ecuaciones: {6x+6y=65x+y=13 \begin{cases} 6x + 6y = -6 \\ 5x + y = -13 \end{cases}

  1. Primero, vamos a multiplicar la segunda ecuación por 6 para que el coeficiente de y y en ambas ecuaciones sea el mismo: 6(5x+y)=6(13) 6(5x + y) = 6(-13) 30x+6y=78 30x + 6y = -78

Ahora tenemos el sistema: {6x+6y=630x+6y=78 \begin{cases} 6x + 6y = -6 \\ 30x + 6y = -78 \end{cases}

  1. Restamos la primera ecuación de la segunda para eliminar y y : (30x+6y)(6x+6y)=78(6) (30x + 6y) - (6x + 6y) = -78 - (-6) 30x+6y6x6y=78+6 30x + 6y - 6x - 6y = -78 + 6 24x=72 24x = -72

  2. Resolvemos para x x : x=7224 x = \frac{-72}{24} x=3 x = -3

  3. Sustituimos x=3 x = -3 en la segunda ecuación original para encontrar y y : 5(3)+y=13 5(-3) + y = -13 15+y=13 -15 + y = -13 y=13+15 y = -13 + 15 y=2 y = 2

Por lo tanto, la solución del sistema de ecuaciones es: x=3 x = -3 y=2 y = 2

La solución es (3,2) (-3, 2) .

This problem has been solved

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