Question:
Solve 1039 = -53*v + 244 for v..

Answer:
-15

Question:
Solve -1386 + 1258 = -16*x for x..

Answer:
8

Question:
Solve 24*z + 27688 - 29032 = -60*z for z..

Answer:
16

Question:
Solve 0 = -3847*r + 3826*r - 231 for r..

Answer:
-11