Question: What is the solution?

Solve 0 = -14*s - 13*s - 135 for s.

Answer: -5

Question: What is the solution?

Solve -105 + 319 = -886*t + 181*t + 2329 for t.

Answer: 3

Question: What is the solution?

Solve -4722 = -198*v - 1031 + 1061 for v.

Answer: 24

Question: What is the solution?

Solve 2722*a + 152968 = -640*a + 21850 for a.

Answer:
-39