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belozerovavikt
@belozerovavikt
July 2022
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Помогите решить уравнение:-5(0.7x-1.28)=-x-1 1/10
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ФАИНА1984
Verified answer
-5(0.7x-1.28)=-x-1 1/10
-3.5х+6.4=-х-1.1
-3.5х+х=-1.1-6.4
-2.5х=-7.5
х=-7.5:(-2.5)
х=3
2 votes
Thanks 4
Пингвин090
Verified answer
-5(0.7x -1.28)=-x-1 1/10
-3.5x+6.4=-x-1.1
-3.5x+x=-1.1-6.4
-2.5x=-7.5
x= -7.5 : (-2.5)
x= 3
ответ :x=3
Учись хорошо:)
2 votes
Thanks 3
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Answers & Comments
Verified answer
-5(0.7x-1.28)=-x-1 1/10-3.5х+6.4=-х-1.1
-3.5х+х=-1.1-6.4
-2.5х=-7.5
х=-7.5:(-2.5)
х=3
Verified answer
-5(0.7x -1.28)=-x-1 1/10-3.5x+6.4=-x-1.1
-3.5x+x=-1.1-6.4
-2.5x=-7.5
x= -7.5 : (-2.5)
x= 3
ответ :x=3
Учись хорошо:)