Solution: 3/8*5%=5%x

3/ 160=5%x

x=4.5

7:4.2=(x+7):9

Solution: 1/0.6=(x+7)/9.

9=0.6x+4.2

x=4.8/0.6

x=8

1/6x:3/4=7: 1 and 2/5.

Solution: 1/6x*4/3=7/(7/5)

2/9x=5

x=22.5

4 you 1/2: 1 you 2/7= 1 you 1/3: (4-x)

Solution: (9/2):(9/7)=4/3:(4-x)

7/2*(4-x)=4/3

14-7x/2=4/3

7x/2= 12 2/3

7x=76/3

x=76/2 1