Answer:
y=6/7
Step-by-step explanation:
Convert mixed numbers into improper fractions: (10/7)/3=5/9/y
Simplify 5/9/y=5y/9
Apply fraction cross: if a/b=c/d then a*d=b*c: 10/7*9=3*5y
Simplify: 90/7=15y
Multiply both sides by 7: 90/7*7=15y*7
Switch sides: 105y=90
Divide both sides by 105: 105y/105=90/105
Simplify y=6/7
