Question

1.rozwiaz rownannia 2(x+1)=4 (x+2)razy6=0,5x 0,5x-6+1/4 (x+6)=5 2(x+1)-4=10 1/2x=1/3x-1 2x-3+4+6x 2 . a 5(x-1)+2x=2(x+2)+6 b x+4-5(x-8)=x-6 c 6x-(x-1)=6

Answer 1

2(x+1)=4

2x+2=4

2x=4-2

2x=2   /:2

x=1

 

 

(x+2)*6=0,5x

6x+12=0,5x

5,5x = -12    /:5,5

x = 2 10/55

 

0,5x-6+1/4 (x+6)=5

0,5x-6+0,25x+1,5=5

0,75x = 9,5     /:0,75

x = 190/15 = 12  10/15 = 12 2/3

 

2(x+1)-4=10

2x+2-4=10

2x=12   /:2

x=6

 

1/2x=1/3x-1

3/6x-2/6x=-1

1/6x=-1      /*6

x=-6

 

2x-3+4+6x = 2

8x= 1    /:8

x=1/8

 

5(x-1)+2x=2(x+2)+6

5x-5+2x=2x+4+6

7x-5=2x+10

7x-2x=10+5

5x=15    /:5

x=3

 

x+4-5(x-8)=x-6

x+4-5x+40=x-6

-4x+44=x-6

-5x=-50   /:(-5

x=10

 

6x-(x-1)=6

6x-x+1=6

5x=5    /:5

x=1