mariecarter72
mariecarter72
06-10-2015
Mathematics
contestada
| 3x | = 9
| -3r | = 9
b/5 = 1
Respuesta :
Panoyin
Panoyin
07-10-2015
|3x| = 9
|3x| = ±9
|3x| = 9 U |3x| = -9
3x = 9 U 3x = -9
3 3 3 3
x = 3 x = -3
|-3r| = 9
|-3r| = ±9
|-3r| = 9 U |-3r| = -9
3r = 9 U 3r = -9
3 3 3 3
r = 3 r = -3
¹/₅b = 1
5(¹/₅b) = 5(1)
b = 5
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