harmony04 harmony04
  • 20-08-2021
  • Mathematics
contestada

Solve the system of equations using substitution or elimination:
x = 3y + 6
2x - 4y = 8

Respuesta :

HJYMegan
HJYMegan HJYMegan
  • 20-08-2021

Answer:

x=0, y=-2

Step-by-step explanation:

Let x=3y+6 be equation 1

and 2x-4y=8 be equation 2

sub equation 1 into equation2,

2(3y+6)-4y=8

6y+12-4y=8

2y=-4

y=-2

sub y=-2 into equation 1,

x=3(-2)+6

x=0

sub is an abbreviation for substitute

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