515 вып деление 1)-2 1/2 : 31/2 2)-4 2/3:(-11/6) 3)3 3/8(-2 1/4) 4)-7 1/2 : 3 3/4 5)-5 4/9:(-2 1/3 6)9 1/3:(-6 2/9) 517 решите уровнения 1) -1,22*x=6,1 2) -8,9*(-х)=11,57 3)9,6 *(-у)=-43,2 4)-5,3*х=2,65 5)0,3*(-х)=-2,34 6)-6,1*у=19,52
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