Problem: Math Problem
Solve 10*u - 30 = -5*u for u.

A: 2

Problem: Math Problem
Solve 525708 = 18947*t - 99543 for t.

A: 33

Problem: Math Problem
Solve -2173*b + 57896 - 52348 + 87891 = 0 for b.

A:
43