Problem: Math Problem
Solve -1941*k + 70 = -1931*k for k.

A: 7

Problem: Math Problem
Solve -1427677*u - 920 = -1427666*u - 227 for u.

A: -63

Problem: Math Problem
Solve -77*z = -69*z + 56 + 64 for z.

A:
-15