milesisaway milesisaway

16-09-2016
Mathematics

contestada

Solve for x: -3|2x + 6| = -12

x = 1 and x = 5

x = -1 and x = -5

x = -9 and x = 3

No solution

Respuesta :

nobillionaireNobley nobillionaireNobley

17-09-2016

-3|2x + 6| = -12
|2x + 6| = -12/-3 = 4
2x + 6 = 4 and 2x + 6 = -4
2x = 4 - 6 = -2 and 2x = -4 - 6 = -10
x = -2/2 = -1 and x = -10/2 = -5
x = -1 and x = -5

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