Question:
Solve 7 = 41*k + 48 for k..

Answer:
-1

Question:
Solve -28*k + 27 = -68 - 45 for k..

Answer:
5

Question:
Solve 578 = -100*s - 222 for s..

Answer:
-8

Question:
Solve -4*a + 24 - 44 = 0 for a..

Answer:
-5