Write down the solution for this math problem: Solve 8*l + 19 - 52 = -73 for l.
answer: -5

Write down the solution for this math problem: Solve 7*g = 2*g - 5 for g.
answer: -1

Write down the solution for this math problem: Solve 39 = 31*r + 8 for r.
answer: 1

Write down the solution for this math problem: Solve -150*h + 537*h + 6742 - 21247 = 20712 for h.
answer:
91