Question

Rozwiąrz rówania : 1/3x - 1 = 1/2x , 1/2 - x = -1/2x , 1/2x + 1/5x - 1/10x =2 , 3(2x + 3) =x - 1 , 4(x-1)=3(x+1) , -(x-1)=2 , 1-3(x+1)=x

Answer 1

1/3x - 1 = 1/2x  / * 6

2x-6=3x

-x=6  /*(-1)

x=-6

 

1/2 - x = -1/2x  / /*2

1-2x=-x

-x=-1    /*(-1)

x=1

 

1/2x + 1/5x - 1/10x  =2  / *10

5x+2x-x=20

6x=20   /:6

x=3 1/3

 

3(2x + 3) =x - 1 

6x+9-x=-1

5x=-10 /:5

x=-2

 

4(x-1)=3(x+1) 

4x-4=3x+3

4x-3x=3+4

x=7

 

-(x-1)=2 

-x+1=2

-x=1  /*(-1)

x=-1

 

1-3(x+1)=x

1-3x-3-x=0

-4x=2  /:(-4)

x= - 1/2