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Solve the system by substitution y = -4x -4 y = -8x
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7 votes
Solve the system by substitution y = -4x -4 y = -8x

User KingFeming
by
3.8k points

1 Answer

8 votes

Answer:

x = 1

Explanation:

Given :

  • y = -4x - 4
  • y = -8x

Equate the sides :

  • -4x - 4 = -8x

Add 4 on both sides :

  • -4x - 4 + 4 = -8x + 4
  • -4x = -8x + 4

Add 8x on both sides :

  • -4x + 8x = -8x + 4 + 8x
  • 4x = 4

Divide both sides by 4 :

  • 4x/4 = 4/4
  • x = 1
User Brenda Jimenez
by
3.2k points
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