qwerty123
qwerty123 qwerty123
  • 12-11-2014
  • Mathematics
contestada

solve this

6x = 8 = 50?

2x - 5 = 11?

13 = -4x + 9?

7 - 3x = 34?

Respuesta :

luana
luana luana
  • 12-11-2014
[tex]2x-5=11\ \ \ | add\ 5\\ 2x=16\ \ \ | divide\ by\ 2\\ x=8\\\\\\ 13=-4x+9\ \ | subtract\ 9\\ 4=-4x\ \ \ | divide\ by\ -4\\ x=-1\\\\\\7-3x=34\ \ \ | subtract\ 7\\ -3x=27\ \ \ | divide\ by\ -3\\ x=-9[/tex]
Answer Link
Аноним Аноним
  • 12-11-2014
6x=8

x=8/6=4/3

--------------

6x=50

x=50/6=25/3

----------------

2x-5=11

2x=16

x=8

---------------

13=-4x+9

4x=9-13

4x=-4

x=-1

-------------

7-3x=34

3x=7-34

3x=-27

x=-9
Answer Link

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