Question

ME AJUDA calcule: a)2x-4-8=4x b)3x=x + 1 + 7 c)360 + 36x+30x

Answer 1

a)2x - 4 - 8 = 4x

  2x - 12 = 4x

  2x - 2x - 12 = 4x - 2x

  - 12 = 2x

  - 12/2 = 2x/2

  - 6 = x

b)3x = x + 1 + 7

  3x = x + 8

  3x - x = x - x + 8

  2x = 8

  2x/2 = 8/2

  x = 4

c)360 + 36x + 30x = 0

  360 + 66x = 0

  360 - 360 + 66x = 0 - 360

  66x = - 360

  66x /66 = 360 / 66

  x =  360/66 (/6)

  x = 60/11