Ответ:-2 (4n+1 )+ 3 (2n-1)=-8n-2+6n-3=-2n-5=-2•2-5=-4-5=-9
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Ответ:-2 (4n+1 )+ 3 (2n-1)=-8n-2+6n-3=-2n-5=-2•2-5=-4-5=-9