Решите пожалуйста всех

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Решите пожалуйста всех


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Математика (36 баллов) | 22 просмотров
Дан 1 ответ
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4x-7 = 0
4x = 0 + 7
4x = 7
x = 1.75
_______

-3x + 9 = 0
-3x = -9
x = 3
_______
-5x + 6 = 0
-5x = - 6
x = 1.2
________
-4x + 10 = 0 
-4x = -10
x = 2.5
_________

-4x - 7 = 0
-4x=7
x = -1.75
________
-5x - 1 = 0
-5x = 1
x = - 0.2
_________
5x - 9 =3
5x = 3 + 9
5x = 12
x = 2.4
_________
2x - 7 = 6
2x = 6 + 7 
2x = 13
x = 6.5
________
4x + 10 = -10
4x = - 10 - 10 
4x = -20
x = -5
_________
2x - 10 = -3 
2x = -3 + 10 
2x = 7
x = 3.5
__________
2x + 6 = 8
2x = 8 - 6
2x = 2
x = 1
_________
-2x - 3 =1 
-2x = 1 + 3
-2x = 4
x = -0,5
___________
-5x - 9 = -6 
-5x = -6 + 9 
-5x = 3
x = 0.5 
_________
-4x + 4 = -6 
-4x = -6 - 4
-4x = -10
x = 2.5
________
-5x - 1 = 4 
-5x = 4 + 1 
-5x = 5
x = -1
________
-4x + 8 = -7 
-4x = -7 - 8
-4x = -15
x = 3.75
_________
10x + 1 = 6x 
10x - 6x = -1 
4x = -1 
x = -0.25
_________
9x + 6 = 10x
9x - 10x = -6 
-1x = -6
x = 6

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