Question:
Solve -119 = -103*k + 86*k for k..

Answer:
7

Question:
Solve -24*v = 378*v + 277*v - 21049 for v..

Answer:
31

Question:
Solve 2*x + 3 = x for x..

Answer:
-3

Question:
Solve 131*k - 3251 + 369 = 0 for k..

Answer:
22