Question

4x + 2y=16
7x - 2y=6

Answer 1

Respuesta:

x = 2; y=4

Explicación paso a paso:

método de igualación

4x + 2y=16

7x - 2y=6

4x = 16 - 2y

7x = 6 + 2 y

7 ( 16 - 2y ) = 4 ( 6 + 2 y )

112 - 14y = 24 + 8y

-14y - 8y = 24 - 112

-22y = -88

y = -88/-22

y = 4

4x + 2 ( 4 ) =16

4x + 8 = 16

4x = 16 - 8

4x = 8

x = 8/4

x = 2

7 ( 2 ) - 2 ( 4 ) = 6

14 - 8 = 6