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Oblicz :
3 (1/6 a - 1/6 b) =
(6-3c-9b) * 1/3 =
0,8 (5a - 6 b ) =
1/2 (2c +2d ) =
1/2 (2x - 4y - 8 ) =
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1/2a-1/2b
2-c-3b
4a-4,8b
c+d
x-2y-4
3(1/6 a - 1/6 b) = 0,5a - 0,5b
(6-3c-9b) * 1/3 = 2 - c - 3b
0,8 (5a - 6b ) = 4a - 4,8b
1/2 (2c +2d ) = c + d
1/2 (2x - 4y - 8 ) = x - 2y - 4