Question:
Solve -11*y = y - 60 for y..

Answer:
5

Question:
Solve 42*s + 1569 - 219 = 96*s for s..

Answer:
25

Question:
Solve -2*l = -8*l + 30 for l..

Answer:
5

Question:
Solve 198 = 131*k - 457 for k..

Answer:
5