Ответы и объяснения

2012-08-21T20:16:33+04:00

7-(2x-3)=x-(2-4x)
7-2x+3 = x - 2 + 4x
-2x-x-4x = -2 - 7 - 3
  -7x = -12
  x = 12/7 =1(5/7)

2012-08-21T20:21:18+04:00

7-(2x-3)=x-(2-4x)

7-2x+3 = x - 2 + 4x

-2x-x-4x = -2 - 7 - 3

  7x  = 12

  x = 12/7 = 1⁵/₇