Ответ:
(1/3)^y-8=1/9
3^-y+8=3^-2
-y+8=-2
-y=-2-8
-y=-10
y=10
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Ответ:
(1/3)^y-8=1/9
3^-y+8=3^-2
-y+8=-2
-y=-2-8
-y=-10
y=10