Question

Answer 1

4/7 : x = 13

x = 4/7 : 13

x = 4/91

2/3 : x = 1,4 - 12/5

2/3 : x = 7/5 - 12/5

2/3 : x = -1

x = 2/3 :  -1

x = -2/3 

1/3 + 2/3 : x = -7

1 : x = -7

x = 1 : -7

x = -1/7

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

7/2 - 1/2x = 2/3

1/2x = 7/2 - 2/3

1/2x = 17/6

x = 17/6 : 1/2

x = 17/6

Answer 2

d) x = 4/7 : 13

x = 4/91

e) 1 : x = -7

x = 1 : (-7)

x = -1/7

g) 2/3 : x = -1

x = 2/3 : (-1)

x = -2/3

h) 7/2 - 1/2x = 2/3

1/2x = 7/2 - 2/3

1/2x = 17/6

x = 17/6 : 1/2

x = 17/3

Answer 3

4/7 : x = 13

x = 4/7 : 13

x = 4/91

2/3 : x = 1,4 - 12/5

2/3 : x = 7/5 - 12/5

2/3 : x = -1

x = 2/3 :  -1

x = -2/3 

1/3 + 2/3 : x = -7

1 : x = -7

x = 1 : -7

x = -1/7

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

7/2 - 1/2x = 2/3

1/2x = 7/2 - 2/3

1/2x = 17/6

x = 17/6 : 1/2

x = 17/6

        x =