Question: What is the solution?

Solve 0 = 4*d - 60 + 4 for d.

Answer: 14

Question: What is the solution?

Solve -105*t - 42029 - 1355 = 231*t + 38*t for t.

Answer: -116

Question: What is the solution?

Solve 2726*l - 446*l + 54024 = 29*l for l.

Answer: -24

Question: What is the solution?

Solve 683*c + 66*c = -154*c - 21672 for c.

Answer:
-24