Problem: Math Problem
Solve 1905 = 322*d + 7701 for d.

A: -18

Problem: Math Problem
Solve 42*r - 276*r = 133*r + 777*r - 113256 for r.

A: 99

Problem: Math Problem
Solve 69*v = -1272*v - 76446 + 24147 for v.

A:
-39