Question

rozwiaz rownania :

5x = 2x+ 33

y+ jedna trzecia =2y + jedna druga

3,2z = 44 - 1,2z

x+3 podzielone na 4 = 2

2 - 4x podzielone na 2 = 5

1+2x podzielone na 3 =-2

2+5x podzielone na 6 = -1

4(x-1)=3x+5

jedna druga(4x+10)=7(2x-1)

-2,4(5x+4) =32,4+9x

Answer 1

5x=2x+33

5x-2x=33

3x=33 /:3

x=11

 

y+1/3=2y+1/2

y-2y=1/2-1/3

-y=3/6-2/6

-y=1/6  /:-1

y=-1/6

 

3,2z==44-1,2z

3, 2z+1,2z=44

4,4z=44  /:4,4

z=10

 

 

x+3/4=2  /*4

x+3=8

x=5

 

2-4x/2=5  /*2

2-4x=10

-4x=8  /:-4

x=-2

 

1+2x/3=-2  /:3

1+2x=-2

2x=-3  /:2

x=-3/2

x=-1i1/2

 

2+5x/6=-1  /:6

2+5x=-6

5x=-8  /:5

x=-8/5

x=-1i3/5

 

4[x-1]=3x+5

4x-4=3x+5

4x-3x=5+4

x=9

 

1/2[4x+10]=7[2x-1]

2x+5=14x-7

2x-14x=-7-5

-12x=-12  /:-12

x=1

 

-2,4[5x+4]=32,4+9x

-12x-9,6=32,4+9x

-12x-9x=32,4+9,6

-21x=42  /:-21

x=-2