Solve for x: |2x + 6| - 4 = 20
A. x = 9 and x = 11
B. x = -9 and x = 15
C. x = 9 and x = -15
D. No solution

Question

milesisaway milesisaway

16-09-2016
Mathematics

contestada

Solve for x: |2x + 6| - 4 = 20
A. x = 9 and x = 11
B. x = -9 and x = 15
C. x = 9 and x = -15
D. No solution

Respuesta :

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nobillionaireNobley nobillionaireNobley · Answer 1 · 2016-09-17T22:30:48+02:00

nobillionaireNobley nobillionaireNobley

17-09-2016

|2x + 6| - 4 = 20
|2x + 6| = 20 + 4 = 24
2x + 6 = 24 and 2x + 6 = -24
2x = 24 - 6 = 18 and 2x = -24 - 6 = -30
x = 18/2 = 9 and x = -30/2 = -15
x = 9 and x = -15

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Solve for x: |2x + 6| - 4 = 20 A. x = 9 and x = 11 B. x = -9 and x = 15 C. x = 9 and x = -15 D. No solution

Respuesta :

Otras preguntas

Solve for x: |2x + 6| - 4 = 20
A. x = 9 and x = 11
B. x = -9 and x = 15
C. x = 9 and x = -15
D. No solution