darkshadows594 darkshadows594
  • 22-11-2017
  • Mathematics
contestada

Solve the equation.

|2x + 4| = 8


A.) x = -12 or x =4

B.) x = -6 or x =2

C.) x = 2 only

D.) x = 6 only

Respuesta :

hannahl52
hannahl52 hannahl52
  • 22-11-2017
B is the correct answer.

please vote my answer brainliest. thanks!
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CrystalQueen
CrystalQueen CrystalQueen
  • 22-11-2017
Your answer would be B.) x = -6 or x = 2

l 2(2) + 4 l = 8
l 4 + 4 l = 8
l 8 l = 8
8 = 8

When using -6 for x, the equation would give you -8, but the absolute value signs would make it positive.

l 2(-6) + 4 l = 8
l -12 + 4 l = 8
l -8 l = 8
8 = 8

Hope this helps!
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