Negative and Postive Integer(Only letters no spaces no uppercase letters)

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12345678910111213141516171819
Across
  1. 2. 7-6+(-2)
  2. 4. 100-7+(-5)
  3. 6. 99-99-(-7)
  4. 8. -26+26+36
  5. 9. 4(-1+2)
  6. 11. (-5)+11-4
  7. 12. 13+(-6)+12
  8. 14. 75-25
  9. 15. 8+(-3)
  10. 16. 15-6+(-3)
  11. 18. (-6)+3-5
  12. 19. 2+(-5)+7
Down
  1. 1. (-30)+8
  2. 3. (-6)+10-6
  3. 5. 30-4+(-10)
  4. 7. 7-(-4)
  5. 9. 8-7+(-10)
  6. 10. 36-7
  7. 13. 15-5+(-14)
  8. 17. -10(-3)