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yert
@yert
August 2022
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найдите корни уравнений
(6-x)+(12+x)-(3-2x)=15
(1,5x-1)-(0,2x-1)=0
8,2-(5,8x+4)=-(0,6x-1)
при каких значениях x равны значения дробей
0,6-2x/3 и 1,2-4x/6
6-0,1x/4 и 3-0,05x/2
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ekaterinkamiss
1)6-x+12+x-3+2x=15
2x+15=15
2x=15-15
2x=0
x=0
2)0,3x^2-1,5x-0,2x+1=0
0,3x^2-1,7x+1=0
D=2,89-1,2=
x1=
X2=
3)8,2-5,8x-4=-0,6x+1
8,2-5,8x-4+0,6x-1=0
-5,2x+3,2=0
-5,2x=-3,2
x=0,6
2 votes
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Answers & Comments
2x+15=15
2x=15-15
2x=0
x=0
2)0,3x^2-1,5x-0,2x+1=0
0,3x^2-1,7x+1=0
D=2,89-1,2=
x1=
X2=
3)8,2-5,8x-4=-0,6x+1
8,2-5,8x-4+0,6x-1=0
-5,2x+3,2=0
-5,2x=-3,2
x=0,6