Question:
Solve -26*x + 432 = -62*x for x..

Answer:
-12

Question:
Solve -132*f - 9*f - 2400 = -41*f for f..

Answer:
-24

Question:
Solve 48458 = -53*v + 49306 for v..

Answer:
16

Question:
Solve -39*r + 129*r = 3*r - 8091 for r..

Answer:
-93