courtney121871
courtney121871 courtney121871
  • 04-02-2021
  • Mathematics
contestada

Solve the system of equations
Y = 2x
X - Y = 10

Respuesta :

sandgirl212 sandgirl212
  • 05-02-2021

Answer:

x=-10, y=-20

Step-by-step explanation:

first you substiture the y in the second equation with the first

x-2x=10

then solve

1x-2x=-1

-x=10

multiply both sides by a negative to make the varible a

positive

x=-10

now we substitue the x in the first equation with -10

y=2(-10)

y=-20

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