Question

2x+2y=160
x=3y
método de sustitucion​

Answer 1

Respuesta:

1-x=3y

2x=160-2y

x=160:2-2y

x=80-2y

2- 1(80-2y)=3y

80-2y=3y

-2y-3y=-80

-5y=-80

y=-80:(-5)

y=16

x=3.16

x=48

{(16:48)}