memelord666
memelord666 memelord666
  • 12-09-2016
  • Mathematics
contestada

Solve for x: −4|x + 5| = −16
a. x = 21 over 4, x = −11 over 4
b. x = −1, x = 9
c. x = −1, x = −9
d. No solution

Respuesta :

texaschic101
texaschic101 texaschic101
  • 13-09-2016
-4 | x + 5 | = -16...divide both sides by -4, eliminating it on the left side
| x + 5 | = -16/-4
| x + 5 | = 4

x + 5 = 4           -(x + 5) = 4
x = 4 - 5            -x - 5 = 4
x = -1                 -x = 4 + 5
                          -x = 9
                           x = -9

solutions : x = -1 , x = -9
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