Odpowiedzi

2010-03-09T16:32:27+01:00
8-(5-(-2))-4*(-2)=5((-2)+y)-3((-2)-y)=6-(5-(-2))-4(-2)=8-7+8=5-2y-3+2y=6+7+8=9=2
8*3/4-2(5*3/4+6)+7*3/4-4=6-2(15/4+6)+21/4-4=4(3 3/4+6)+5 1/4-4=4*9 3/4+1 1/4=28 1/4
4*1/2-2(8*1/2-1/2)+5*1/2-1/2=2-2*31/2+2=2-31+2=-27
(0,75+(-0,5))-(0,75+(-0,5))=0,75-0,5-0,75-0,5=-1