Question

7-2х=9-3х
11х=6+5(2х-1)
6(2х-3)-3х=2х-4
4(3х+5)-5(4х-3)=3
5х-3(4х-1)=7-2(7х+2)
-5,6(х-3)+2,1х=-3,5х+10

Answer 1

7 - 2X = 9 - 3X 
2X - 3X = 7 - 9 
- X = - 2 
X = 2 
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11X = 6 + 10X - 5 
11X - 10X = 1 
X = 1 
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12X - 18 - 3X = 2X - 4 
9X - 2X = - 4 + 18 
7X = 14 
X = 2 
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12X + 20 - 20X + 15 = 3 
- 8X = 3 - 35 
- 8X = - 32 
X = 4 
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5X - 12X + 3 = 7 - 14X - 4 
- 7X + 14X = 3 - 3 
7X = 0 
X = 0 
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- 5,6X + 16,8 + 2,1X = - 3,5X + 10 
- 3,5X + 3,5X = 10 - 16,8 
0X = - 6,8 
Нет решений 

Answer 2

спасибо вам огромное

Answer 3

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