paytonlewellyn123 paytonlewellyn123

04-08-2016
Mathematics

contestada

Solve for x: |3x + 12| = 18
A.x = 2, x = –10
B.x = 2, x = –2
C.x = 10, x = –10
D.x = –2, x = 10

Respuesta :

Panoyin Panoyin

04-08-2016

|3x + 12| = 18
|3x + 12| = ±18
  3x + 12 = 18 or 3x + 12 = -18
- 12 - 12    - 12   - 12
3x = 6 3x = -30
3 3 3 3
x = 2 x = -10

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