soccerguy soccerguy

02-06-2014
Mathematics

contestada

Solve for y.
8^3-3y=256^4y

Respuesta :

Аноним Аноним

14-06-2014

[tex]8^{3-3y}=256^{4y}\\\\(2^3)^{3-3y}=(2^8)^{4y}\\\\2^{3(3-3y)}=2^{8\cdot4y}\\\\2^{9-9y}=2^{32y}\iff9-9y=32y\\\\-9y-32y=-9\\-41y=-9\ \ \ \ /:(-41)\\\\y=\frac{9}{41}[/tex]

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