Write down the solution for this math problem: Solve -19*s - 16 = -15*s for s.
answer: -4

Write down the solution for this math problem: Solve 712*d + 73266 = -363*d - 52509 for d.
answer: -117

Write down the solution for this math problem: Solve 117 + 3 = -63*r + 183*r for r.
answer: 1

Write down the solution for this math problem: Solve -75*n + 1749*n - 48546 = 0 for n.
answer:
29