Question:
Solve 4*r + 132 = 44 for r..

Answer:
-22

Question:
Solve -3535*k - 318*k - 243830 = 1194*k + 1543*k for k..

Answer:
-37

Question:
Solve -35 = -167*y + 162*y for y..

Answer:
7

Question:
Solve 7*c - 18 - 79 = -174 for c..

Answer:
-11