Question: What is the solution?

Solve -7*l + 15 + 20 = 0 for l.

Answer: 5

Question: What is the solution?

Solve 14*t = 23*t + 27 for t.

Answer: -3

Question: What is the solution?

Solve -77*s + 21*s + 2992 = -3001 + 1905 for s.

Answer: 73

Question: What is the solution?

Solve -151*h - 13*h + 32*h = 88*h - 9900 for h.

Answer:
45