Question:
Solve -41*u + 14*u + 28*u - 43 = 0 for u..

Answer:
43

Question:
Solve -101 + 81 = 4*z for z..

Answer:
-5

Question:
Solve 66*v - 30 = 60*v for v..

Answer:
5

Question:
Solve 0 = 356*z + 2822 + 1560 + 4874 for z..

Answer:
-26