Question

ile to jest : x+1/4=7/8 1/2-x=-0,5 x-[(-1/3)+2/9]=5/12 możecie jeszcze napisać jak to zrobiliście

Answer 1

x+1/4=7/8

x= 7/8-1/4

x= 7/8 - 2/8

x=5/8

 

1/2 -x = -0,5

-x=-1/2 -1/2

x=1

 

x-[(-1/3)+2/9]=5/12  

x-(-3/9+2/9) = 5/12

x+1/9 = 5/12

x= 15/36 - 4/36

x=11/36

Answer 2

x+1/4=7/8

x=7/8-1/4

x=7/8-2/8

x=5/8

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

   1/2-x=-0,5

-x=-0,5-1/2

-x=-0,5-0,5

-x=-1  /*(-1)

x=1

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

   x-[(-1/3)+2/9]=5/12  

x-[(-3/9+2/9)=5/12

x-(-1/9)=5/12

x+1/9=5/12

x=5/12-1/9

x=15/36-4/36

x=11/36