Question:
Solve 4*h + 163 - 151 = 0 for h..

Answer:
-3

Question:
Solve 4*b - 216 = -212 for b..

Answer:
1

Question:
Solve -3*x = -10*x + 28 for x..

Answer:
4

Question:
Solve 1979*u - 25036 + 2929 - 21431 = 0 for u..

Answer:
22