Question

Help me ,my friend!!!

100de puncte +coroana!!!

URGENTT!!!

Answer 1

a) 7/9 - x/3 = 1/9
    x/3 = 7/9-1/9
    x/3 = 6/9 = 2/3
    x = 2

b) 2/x - 2/15 = 8/15
    2/x = 8/15+2/15
    2/x = 10/15 = 2/3
    x = 3

c) 9/14 - 2/x = 5/14
    2/x = 9/14 - 5/14
    2/x = 4/14 = 2/7
    x = 7

d) x/21 - 1/3 = 3/21
    x/21 = 3/21 + 1/3 = 3/21 + 7/21 = 10/21
    x = 10

Answer 2

7/9 - x/3 = 1/9
    
x/3 = 7/9 -1/9

x/3 = 6/9

x/3 = 2/3

x = 2



2/x - 2/15 = 8/15

2/x = 8/15 + 2/15

2/x = 10/15

2x= 2/3

x = 3


9/14 - 2/x = 5/14

2/x = 9/14 - 5/14

2/x = 4/14

2x = 2/7
   
x = 7


x/21 - 1/3 = 3/21

x/21 = 3/21 + 1/3

x/21= 3/21 + 7/21

x/21 = 10/21
   
x = 10