1. If 20 + y = 42, solve y
2. If 6 + z = 15, solve z
3. If 7 + t = 35, what is value of t?
4. If 9 + z = 7, solve z
5. If x − 15 = 7, what is value of x?
6. If y − 120 = 4, solve y
7. If z − 10 = −5, what is value of z?
8. If a − 25 = −38, solve a
9. If 17 + b = −5, what is value of b?
10. If c + 20 = −34, solve c
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