Question:
Solve 0 = 26*z - 13 + 325 for z..

Answer:
-12

Question:
Solve 208*r + 1159 + 322 + 1847 = 0 for r..

Answer:
-16

Question:
Solve 325 = 224*l + 101 for l..

Answer:
1

Question:
Solve 76*o - 81*o = 15 for o..

Answer:
-3