Question:
Solve 18*m = -4*m + 41*m - 23*m + 52 for m..

Answer:
13

Question:
Solve -7241 = 20*a - 7521 for a..

Answer:
14

Question:
Solve 62*k + 32*k = 21*k - 803 for k..

Answer:
-11

Question:
Solve -39*z - 110 = 553 for z..

Answer:
-17