Question: What is the solution?

Solve -9*m + 1043 = 1079 for m.

Answer: -4

Question: What is the solution?

Solve -90 + 85 = 5*m for m.

Answer: -1

Question: What is the solution?

Solve -972*d + 422186 = 435794 for d.

Answer: -14

Question: What is the solution?

Solve -26*l = -19*l for l.

Answer:
0