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vasilisaanisim
@vasilisaanisim
August 2022
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Найдите корень уравнения 1)0,9х-0,6(х-3)=2(0,2х-1,3)
2) -0,4(3х-1)+8(0,8х-0,3)=5-(3,8х+4)
3)4/7(0,56-4,2у)+0,4=5/13(0,52-6,5у)
P.S: "4/7;5/13"-это обыкновенная дробь.
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durzhanova97
0,9x-0,6(x-3)=2(0,2x-13)
0,9x-0,6x+1,8x=0,4x-2,6
2,1x-0,4x=2,6
-0,4x=2,6
x=-6,5
3 votes
Thanks 2
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Answers & Comments
0,9x-0,6x+1,8x=0,4x-2,6
2,1x-0,4x=2,6
-0,4x=2,6
x=-6,5