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Solve the system by substitution.y, equals, minus, 3, x, plus, 4y=−3x+4y, equals, xy=x

Question

Solve the system by substitution.y, equals, minus, 3, x, plus, 4y=−3x+4y, equals, xy=x

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Solution

Claro, vamos a resolver el sistema de ecuaciones por sustitución paso a paso.

Dado el sistema:

  1. y=3x+4 y = -3x + 4
  2. y=x y = x

Paso 1: Sustituir la ecuación (2) en la ecuación (1).

Dado que y=x y = x , podemos sustituir y y en la ecuación (1):

x=3x+4 x = -3x + 4

Paso 2: Resolver para x x .

Sumamos 3x 3x a ambos lados de la ecuación para despejar x x :

x+3x=4 x + 3x = 4

4x=4 4x = 4

Dividimos ambos lados entre 4:

x=1 x = 1

Paso 3: Sustituir el valor de x x en la ecuación (2) para encontrar y y .

Dado que y=x y = x :

y=1 y = 1

Por lo tanto, la solución del sistema es:

x=1 x = 1 y=1 y = 1

La solución es el punto (1,1)(1, 1).

This problem has been solved

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