berroat575473 berroat575473
  • 18-07-2021
  • Mathematics
contestada

y=x+5 y=-2x-4 I need help with this problem will you help me?

Respuesta :

jimrgrant1 jimrgrant1
  • 18-07-2021

Answer:

x = - 3, y = 2

Step-by-step explanation:

Given the 2 equations

y = x + 5 → (1)

y = - 2x - 4 → (2)

Substitute y = x + 5 into (2)

x + 5 = - 2x - 4 ( add 2x to both sides )

3x + 5 = - 4 ( subtract 5 from both sides )

3x = - 9 ( divide both sides by 3 )

x = - 3

Substitute x = - 3 into either of the 2 equations and evaluate for y

Substituting into (1)

y = - 3 + 5 = 2

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