Question:
Solve -1140*h + 120715 - 29515 = 0 for h..

Answer:
80

Question:
Solve -670*s + 338*s + 226*s - 2226 = 0 for s..

Answer:
-21

Question:
Solve 8*t + 1073 = 281*t + 5441 for t..

Answer:
-16

Question:
Solve -2*r + 1051 = 511 + 496 for r..

Answer:
22