Question: What is the solution?

Solve -1902*h + 1898*h = 28 for h.

Answer: -7

Question: What is the solution?

Solve 172*l + 1257 + 1323 = 0 for l.

Answer: -15

Question: What is the solution?

Solve 1700*d + 2080*d - 750*d + 8037 = 186807 for d.

Answer: 59

Question: What is the solution?

Solve 11*o = -61*o - 216 for o.

Answer:
-3