Cross Number Distribution Puzzle

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Across
  1. 3. 8(x+4)-(x - 45)
  2. 4. 5x - 3(x-2)
  3. 6. 4(7x - 2y+3) -5(6x+4y-1)
  4. 7. -8(9x-7)+72x-57
  5. 9. 3(6+7x)-5(4x+9)
  6. 12. 2(x+5)+5(4-2x)
  7. 14. 5(2x-3y+7) -4(3y-2)
  8. 16. 4(3x+2)+6(5x + 8)
  9. 18. 5(2x + 6) + 3(6x + 7)
Down
  1. 1. 7(x+2) - (x - 3)
  2. 2. 3x+7(x - 9)
  3. 5. 2(3x+4)-5
  4. 8. 4(x - 3) + 2(6x - 5)
  5. 10. 7-4(2x-5)
  6. 11. 7x-(x - 2)
  7. 13. 6x - (x - 1)
  8. 14. -6(x-5)-2(7-3x)
  9. 15. -3(4x-5)-6(7-2x)
  10. 16. 8(2x+3)-4(3x+6)
  11. 17. 3(6 + 5x)-7(2x - 1)