50021710 50021710
  • 19-04-2019
  • Mathematics
contestada

What is the solution of this linear system?
4x+y=-1
y= -2x+3

Respuesta :

kdavi1002
kdavi1002 kdavi1002
  • 19-04-2019
Answer: ( -2, 7)
X=-2 Y=7
Answer Link
jimrgrant1 jimrgrant1
  • 19-04-2019

Answer:

(- 2, 7)

Step-by-step explanation:

Given the 2 equations

4x + y = - 1 → (1)

y = - 2x + 3 → (2)

Substitute y = - 2x + 3 into (1)

4x - 2x + 3 = - 1

2x + 3 = - 1 ( subtract 3 from both sides )

2x = - 4 ( divide both sides by 2 (

x = - 2

Substitute x = - 2 into (2) for corresponding value of y

y = -2(- 2) + 3 = 4 + 3 = 7

Solution is (- 2, 7)

Answer Link

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