`a)|-17/9| + [(1/3)^7 : (1/3)^5] - 2023^0` `b) |x + 5/7| - 1/3 =0` `c) 3/8  - 1/8 : x = -0,125`

`a)|-17/9| + [(1/3)^7 : (1/3)^5] - 2023^0` `b) |x + 5/7| - 1/3 =0` `c) 3/8  - 1/8 : x = -0,125`
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