Question

Równania plis pomożcie ta kreska to ułamek to co u gury to dodac a to za / czyli to na dole ulamka

d)3-(x+2/4)=4+(x-1/3)

e)(5x-4/2)=x/3-2+2 i 1/6

f)(x+3/2)-(x+1/3)=2x+9/6

Answer 1

d)3-x-2/4= 4+ x-1/3

-x -x= 4-1/3 +2/4-3

-2x= 4- 4/12+6/12 -3

-2x= 1 - 2/12

-2x= 1- 1/6

-2x= - 5/6  /(-2)

x= -5/6 *1/2

x= -5/12

 

e) 5x-2 = x/3 -2 + 2 i 1/6

5x-2 = x/3 -2 + 13/6   /6

30x-12= 2x- 12 +13

30x-2x= -12+13+12

28x= 13  /28

x=13/28

 

f) x+ 3/2 -x -1/3 = 2x +9/6    / 12

12x +18 -12x -4= 24x+ 18

12x-12x-24x= 18+4-18

-24x=4  /(-24)

x= -4/24

x= - 1/6

Answer 2

d)3-(x+2/4)=4+(x-1/3)

3-x-2/4 = 4+x-1/3

-2x=4-1/3-3+2/4

-2x=12/12-4/12+6/12

-2x=14/12           /:(-2)

x = -14/24  =  - 7/12

 

e)(5x-4/2)=x/3-2+2  1/6

5x-2=x/3 -2+13/6             /*3

15x-6=x-6+13/2

14x=13/2          /:14

x=13/28

 

 

f)(x+3/2)-(x+1/3)=2x+9/6

x+3/2-x-1/3=2x+9/3

-2x=9/3+1/3-3/2

-2x=18/6+2/6-9/6 = 11/6             /:(-2)

x = 11/6 * (-1/2)

x= - 11/12