Question

10x + 4y = -34
-5x + 2y = 13]
Resolver por método de igualación​

Answer 1

Respuesta:

10x + 4y = -34

-5x + 2y = 13

-20x - 8y = 68

 -5x + 8y = 52

-25x = 120

x = 120/-25

x = -4.8

reemplazas en "x"

-20x - 8y = 68

-20(-4.8) - 8y = 68

96 - 8y = 68

-8y = 68 - 96

-8y = -28

y = -28/-8

y = 3.5

comprobación

-20x - 8y = 68

-20(-4.8) - 8(3.5) = 68

96 - 28 = 68

68 = 68

-5x + 8y = 52

-5(-4.8) + 8(3.5) = 52

24 + 28 = 52

52 = 52

Explicación paso a paso: