Ecuaciones: Valor absoluto
  • 1. |x - 3| = 4
A) x = 8 y x = 0
B) x = 7 y x = -1
C) x = -7 y x = 1
D) x = 1 y x = 2
  • 2. |2x+5|=25
A) x = 10 y x = -15
B) x = -10 y x = -15
C) x = 10 y x = 15
D) x = -10 y x = 15
  • 3. |6x+12|=24
A) x = -2 y x = 6
B) x = 2 y x = -6
C) x = -2 y x = -6
D) x = 2 y x = 6
  • 4. |3x+7|=14
A) x = -2.333 y x = -7
B) x = -2.333 y x = 7
C) x = 2.333 y x = -7
D) x = 2.333 y x = 7
  • 5. |4x+16|=20
A) x = -1 y x = -9
B) x = -1 y x = 9
C) x = 1 y x = -9
D) x = 1 y x = 9
  • 6. |7x-2|=5
A) x = -1 y x = 0.42
B) x = -1 y x = -0.42
C) x = 1 y x = -0.42
D) x = 1 y x = 0.42
  • 7. |8x+8|=8
A) x = 0 y x = -2
B) x = -0 y x = 2
C) x = 0 y x = 2
D) x = -0 y x = -2
  • 8. |9x-9|=9
A) x = 2 y x = -0
B) x = -2 y x = -0
C) x = 2 y x = 0
D) x = -2 y x = 0
  • 9. |12x+8|=14
A) x = 0.5 y x = 1.8
B) x = -0.5 y x = -1.8
C) x = -0.5 y x = 1.8
D) x = 0.5 y x = -1.8
  • 10. |20x + 20| = 40
A) x = 1 y x = -3
B) x = 1 y x = 3
C) x = -1 y x = 3
D) x = -1 y x = -3
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