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vazorg [7]
3 years ago
13

Ayuda el tema en concreto es "Métodos de solución de ecuaciones simultáneas"

Mathematics
1 answer:
Mumz [18]3 years ago
5 0

Answer:

<u>x = 3 y y = 2</u>

Step-by-step explanation:

a) Metodo de reduccion:

Para aplicar este metodo debemos multiplcar por 3 la ecuacion 2 y sumarlas.

4x-3y=6

5x+y=17 *3

4x-3y=6

15x+3y=51

-------sumamos las ecuacioens--------

19x=57

x=3

Ahora, remplazamos x en la ecuacion 2.

5(3)+y=17

y=2

b) Igualacion

Debemos despejar x en ambas y luego igualarlas

x=\frac{6+3y}{4}

x=\frac{17-y}{5}

Igualando:

\frac{6+3y}{4}=\frac{17-y}{5}

5(6+3y)=4(17-y)

19y=8

y=2

Ahora, remplazamos y en la ecuacion 2.

5x+2=17

5x=15

x=3

c) Sustitucion

Despejamos x de la primero ecuacion y lo remplazamos en dos.

x=\frac{6+3y}{4}

5\frac{(6+3y)}{4}+y=17

Multiplicamos por 4

5(6+3y)+4y=68

30+15y+4y=68

30+19y=68      

19y=38  

y=2  

Remplazando en 1.

4x-3(2)=6

4x-6=6

4x=12

x=3          

               

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