Write down the solution for this math problem: Solve -1495*n + 589 = -1472*n + 106 for n.
answer: 21

Write down the solution for this math problem: Solve 0 = -48*s + 596 + 117 + 151 for s.
answer: 18

Write down the solution for this math problem: Solve -68*h = -52*h + 80 for h.
answer: -5

Write down the solution for this math problem: Solve 13*d = -109*d + 1386 + 444 for d.
answer:
15