решите плиз срочно даю 40 балоv
1)1 2/3 х-4/5=2 3/4
2)1/2: (1/3 x-3)=2 1/2
3)1/5:(1/2 x +2)=3 1/5
1)1 2/3 х-4/5=2 3/4
2)1/2: (1/3 x-3)=2 1/2
3)1/5:(1/2 x +2)=3 1/5
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2)1/2 : (x-9)/3 =5/2 ; 3/2 : (x-9) =5/2 ; 6=10(x-9) ;x= 0,6 +9 = 9,6
3) 1/5 :(x+4)/2 =16 /5;( x+4)/2 = 1/5 :16/5 ; x+4 = 1/16 * 2 ; x =1/8 -4 ; x= -3 7/8