can someone help me solve for y in this simple equation?

2/7 - 1/5 = y/3
y = 3(2/7 - 1/5)
y = 6/7 - 3/5
y = (6/7)(5/5) - (3/5)(7/7)
y = 30/35 - 21/35
y = 9/35

10-7/35=y/3,9=35y, y=9/35

9/35=y

Work:
2/7 -1/5 =y/3 find a common denominator
10/35-7/35=y/3
3/35=y/3 then multiply 3 to both sides to get rid of the 3 under the y
9/35=y