adriennegreen101 adriennegreen101
  • 10-09-2019
  • Mathematics
contestada

y
=
–x + 4
x + 2y
=
–8
How many solutions does this linear system have?
one solution: (8, 0)
one solution: (0, 8)
no solution
infinite number of solutions

Respuesta :

sam9671
sam9671 sam9671
  • 10-09-2019
infinite number of solutions
Answer Link
abidemiokin
abidemiokin abidemiokin
  • 21-04-2020

Answer:

one solution

Step-by-step explanation:

Given two equation

y = -x+4 ... (1)

x+2y = -8 ...(2)

Substituting equation (1) into (2), we will have;

x+2(-x+4) = -8

Opening the bracket up

x-2x+8 = -8

-x = -8-8

-x = -16

x = 16

Substituting x = 16 back into equation 1:

y = -16+4

y = -12

This shows that the linear equation has one solution (16,-12)

Answer Link

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