Q: Solve:
Solve 1635*t + 1331*t - 7854 = 2581*t + 24871 for t.

A: 85

Q: Solve:
Solve o + 2*o + 3 = 0 for o.

A: -1

Q: Solve:
Solve -4*i = -7*i + 12 for i.

A:
4