X-3/5=3/8. x=3/8+3/5. x=15/40+24/40. x=39/40.
x+5/24=7/12. x=7/12-5/24. x=14/24-5/24. x=9/24. x=3/8.
y+2/7=1/3. y=1/3-2/7. y=7/21-6/21. y=1/21.
x-1/6=7/9. x=7/9+1/6. x=14/18+3/18. x=17/18.
y-3/8=5/32. y=5/32+3/8. y=5/32+12/32. y=17/32.
y+2/5=1/2. y=1/2-2/5. y=5/10-4/10. y=1/10.