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valerialipadat363
@valerialipadat363
June 2023
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Помогите, срочно!!
Решите уравнение:
-3x+2,4=5x-3
0,5(3x-4)+4,4=0,9(4x-2)
5•(x+1 1/5)=1/2x-7,5=
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Answers & Comments
lsaharenko
1) -3х + 2,4 = 5х - 3
-3х - 5х = -3 - 2,4
-8х = -5,4
-х = (-5,4) : (-8)
-х = 0,675
х = -0,675
2) 0,5(3х-4) + 4,4 = 0,9(4х-2)
1,5х - 2 + 4,4 = 3,6х - 1,8
-2 + 4,4 + 1,8 = 3,6х - 1,5х
4,2 = 2,1х
х = 4,2 : 2,1
х = 2
1 votes
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Answers & Comments
-3х - 5х = -3 - 2,4
-8х = -5,4
-х = (-5,4) : (-8)
-х = 0,675
х = -0,675
2) 0,5(3х-4) + 4,4 = 0,9(4х-2)
1,5х - 2 + 4,4 = 3,6х - 1,8
-2 + 4,4 + 1,8 = 3,6х - 1,5х
4,2 = 2,1х
х = 4,2 : 2,1
х = 2