Question:
Solve -26*h = 43*h + 18*h + 783 for h..

Answer:
-9

Question:
Solve 22*t - 136 = 18 for t..

Answer:
7

Question:
Solve 180*r + 647*r + 406*r = 28359 for r..

Answer:
23

Question:
Solve -l - 17 = -13 for l..

Answer:
-4