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potrzebuję tego do dzisiaj do 18.00
rozwiąż równania:
7x-8=24
-3x+2=11
5x+3=-11
3x-2=2x+7
-4+5=-x+3
5x-4=7x+6


Odpowiedź :

Odpowiedź:

7x - 8 = 24

7x = 24 + 8 = 32

x = 32/7 = 4 4/7

- 3x + 2 = 11

- 3x = 11 - 2 = 9

3x = - 9

x = - 9/3 = - 3

5x + 3 = - 11

5x = - 11 - 3 = - 14

x = - 14/5 = - 2 4/5

3x - 2 = 2x + 7

3x - 2x = 7 + 2

x = 9

- 4x + 5 = - x + 3

- 4x + x = 3 - 5

- 3x = - 2

3x = 2

x = 2/3

5x - 4 = 7x + 6

5x - 7x = 6 + 4

- 2x = 10

2x = - 10

x = - 10/2 = - 5

7x-8=24 /+8
7x=32 /:7
x=32/7
x=4 4/7

-3x+2=11 /-2
-3x=9 /:-3
x=-3