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

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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