Question: What is the solution?

Solve 13*t - 63 - 136 = -4 for t.

Answer: 15

Question: What is the solution?

Solve 27 = 3*l + 24 for l.

Answer: 1

Question: What is the solution?

Solve -1500*s + 145*s = 56910 for s.

Answer: -42

Question: What is the solution?

Solve -114 + 28 = 86*d for d.

Answer:
-1