Question: What is the solution?

Solve 1158*d - 279*d + 931*d - 45110 = 75*d for d.

Answer: 26

Question: What is the solution?

Solve 10*f + 29*f - 365 + 53 = 0 for f.

Answer: 8

Question: What is the solution?

Solve -36*s + 60*s = -192 for s.

Answer: -8

Question: What is the solution?

Solve 2536*i = 2545*i - 63 for i.

Answer:
7