Question

rozwiaz rownania;

a) x+(x+1)*2=11

b) x*3/4/2=6

c)(x+x+8)*6/2=30

Answer 1

a) x+ 2x+2=11

        3x= 9

         x=3

b)x*3/4/2=6

   3/2x=6

      x= 4

c) (x*x+8) *6/2=30

    3x2 + 24=30

    3x2=6

     x2= pierwiastek z 2

Answer 2

a) x + ( x+1 ) * 2 = 11

    x + 2x +2 = 11

    x + 2 x = 11 - 2

        3 x = 9 / 3

         x = 3

 

b) x * 3/4/2 = 6

     x * 3/8 = 6

  3/8 x = 6  /3/8

       x = 6 * 8/3

       x = 48/3

       x = 16

 

c) ( x+x +8)*6/2 = 30

    ( 2x + 8) * 3 = 30

      6 x + 24 = 30

      6 x = 30 - 24

      6 x = 6 /6

        x = 1