pakisagutan po please thank you

Answer:
1. k - 7
2. m + 10
3. 18 - 1/2(n)
4. m + 4 = 12
5. n - 9 = 11
6. 5n = 50
7. n + 10 = 20
8. 6(20 + t)
9. 10k - 15
10. 3n + 6 = 15