Pamiethehelper12
Pamiethehelper12 Pamiethehelper12
  • 10-05-2016
  • Mathematics
contestada

5. 3x-X-7=3 6.3x-3-X=3 7. -1 - 2x +3x=5 8. 3x - 22 - X=6 9. 2x+3x-10=10

I need proof on 5 and 8 please!! ❤️❤️

Respuesta :

ImpatientAngel
ImpatientAngel ImpatientAngel
  • 10-05-2016
** 3x - x -7 = 3

2x = 10

x = 5

** 6. 3x - 3 -x = 3

18x - 3 - x = 3

17x = 6

x = 
[tex] \frac{6}{17} [/tex]

** 7. -1 - 2x + 3x = 5

-7 - 2x + 3x = 5

-7 + x = 5

x = 12

** 
8. 3x - 22 - x = 6

24x - 22 - x = 6

23x = 28

x = 
[tex] \frac{28}{23} [/tex]

** 9. 2x + 3x -10 = 10

18x + 3x - 10 = 10

21x = 20

x = 
[tex] \frac{20}{21} [/tex]
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