(1/2)x = 7

2*1x = 7*2

 2        

x = 14

(2/3)m = 6

3*2m = 6*3

3       

2m = 18

2      2

m = 9

(1/4)b = 5

4*1b = 5*4

4        

b = 20

(1/3)y + 2 = 5

           - 2   -2

       3*(1/3)y = 3*3

y = 9

(2/5)x - 7 = 3

           + 7  + 7

    5*(2/5)x = 10*5

2x = 50

2      2

x = 25

3((2/3)w + 1 = (1/3))

3(2/3)w + 3(1) = 3(1/3)

2w + 3 = 1

       -3   -3

2w = -2

2       2

w = -1

10((1/10)k + (2/10)k = 3)

10(1/10)k + 10(2/10)k = 3(10)

k + 2k = 30

3k = 30

3     3

k = 10

5(9 - (2/5)a = 1)

5(9) - 5(2/5)a = 5(1)

45 - 2a = 5

-45         -45

-2a = -40

-2      -2

a = 20

(1/6)z + 7 = 4

            -7   -7

       6*(1/6)z = -3*6

                z = -18

(-1/3)y - 7 = 3

(-1/3)y - 7 = 3

           + 7  +7

-3(-1/3)y = 10(-3)

y = -30