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(3x-12) :3=x-4
(4x-8) :(-2)= -2x+4
(10x+15) :5=2x+3
(3x-12) :3 = -3x
(4x-8):(-2) = 2x
(10x+15):5 = 5x
na 100% dobrze miałam z matmy 5