Question

AYUDAAAAAA RESOLVER ECUACIONES SIMULTANEAS DE PRIMER GRADO POR EL PROCEDIMIENTO DE IGUALACION

Answer 1

2(X + 5 ) = 4(Y - 4X)  (1)

10(Y - X) = 11Y - 12X  (2)

En (1):  2X + 10 = 4Y - 16X

2X + 16X = 4Y - 10

18X = 4Y - 10

X = (4Y - 10)/18

X = (2Y - 5)/9

En (2): 10(Y - X) = 11Y - 12X

10Y - 10X = 11Y - 12X

12X - 10X = 11Y - 10Y

2X = Y

X = Y/2

Ahora: X = X:

X = (2Y - 5)/9

X = Y/2

(2Y - 5)/9 = Y/2

2(2Y - 5) = 9Y

4Y - 10 = 9Y

-10 = 9Y - 4Y

-10 = 5Y

Y = -10/5

Y = -2

Ahora:

X = Y/2

X = -2/2

X = -1

Rta: X = -1; Y = -2