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smirnovar2016
@smirnovar2016
November 2021
1
20
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решите примеры по алгебре там 3 задания
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iliailis69
2.а)2х-5,5=3(2х-1,5); 2х-5,5=6х-4,5 ; -4х=1; х=-1/4=-0,25; б)х²-7х=0 ; х(х-7)=0; х1=0; х2=7; в)х-4/2 -х-2/5=2; 5(х-4)-2(х-2)=20; 5х-20-2х+4=20; 3х=36;х=12......3. 1)24:0,6=40; 2)-0,4+0,3=-0,1; 3) 40:(-0,1)=-400
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