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-3 x -1 x 2 x 3 + 3 x -1 x 2-(2 x -1 x 2 x 3 -1 x 2)=18 + (-6) - (-12 + 2)=18 - 6 + 10=22
- (-48 x 1/7 x 2 + 10 x 1/7) - (-4 x 1/7 - 1/7 x 2)= 96/7 - 10/7 + 4/7 + 2/7=92/7
Myślę że dobrze :P