Question

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A) x+5/10+2x+5/2=2-x/5

B) x-4/2+6-x/3=2x-5/6

C)x+4/5+2x+9/10=-2-x/2

D)2x-11/4+x+1/12=x-1/6

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Answer 1

A) x+5/10+2x+5/2=2-x/5

    x + 5/10 + 2x + 25/10 = 2 - 2x/10

    3x + 30/10 = 2 - 2x/10   / *10

    30x + 30 = 20 - 2x

    30 x +2x = 20 - 30

    32x = - 10  /: 32

     x = - 10/32

     x = - 5/16

B) x-4/2+6-x/3=2x-5/6

    x - 2 + 6 - x/3 = 2x - 5/6

   x -2 + 6 - 2x/6 = 2x - 5/6  /*6

  6x - 12 + 36 -2x = 2x - 5

  6x-2x-2x = -5+12-36

  2x= -29  /: 2

   x = - 29/2

C)x+4/5+2x+9/10=-2-x/2

   x + 8/10 + 2x + 9/10 = -2 - 5x/10     /*10

   10x + 8 +2x + 9 = -20 - 5x

    10 x + 2x + 5x = -20 -8 - 9

    17 x = -37  /: 17

     x = -37/17

D)2x-11/4+x+1/12=x-1/6

    2x - 33/12 + x + 1/12 = x - 2/12

    2x + x -x = -2/12 +33/12 - 1/12

     2x = 32/12   / :2

    x = 32/12 : 2

    x = 32/12 * 1/2

  x = 32/24

  x = 1 cała i 1/3