Question

389 помогите пжпжаж дам 15бал​

Answer 1

-2/3+(x-1/4)=0

-2/3+x-1/4=0

x=2/3+1/4

x=8/12+3/12

x=11/12

-2/3+(1/4-x)=0

-2/3+1/4-x=0

-x=2/3-1/4

-x=8/12-3/12

x=-5/12

-3/20+(5x-0,2)=0

-3/20+5x-0,2=0

5x=3/20+1/5

5x=3/20+4/20

x=0,35/5

x=0,07

-7/24+(2x-1/4)=0

-7/24+2x-1/4=0

2x=7/24+1/4

2x=7/24+6/24

2x=13/24

x=13/24:2

x=13/48

Answer 2

Ответ:

Пошаговое объяснение:

1)

-2/3 + (х - 1/4) = 0

х - 1/4 = 0 - (-2/3)

х - 1/4 = 2/3

х = 2/3 + 1/4

х = 8/12 + 3/12

х = 11/12

2)

-2/3 + (1/4 - х) = 0

1/4 - х = 0 - (-2/3)

1/4 - х = 2/3

х = 1/4 - 2/3

х = 3/12 - 8/12

х = -5/12

3)

-3/20 + (5х - 0,2) = 0

5х - 0,2 = 0 - (-3/20)

5х - 0,2 = 3/20

5х = 3/20 + 0,2

5х = 0,15 + 0,2

5х = 0,35

х = 0,35 : 5

х = 0,07

4)

-7/24 + (2х - 1/4) = 0

2х - 1/4 = 0 - (-7/24)

2х - 1/4 = 7/24

2х = 7/24 + 1/4

2х = 7/24 + 6/24

2х = 13/24

х = 13/24 : 2

х = 13/24 * 1/2

х = 13/48