Write down the solution for this math problem: Solve 13*j - 463*j = 8509 + 20291 for j.
answer: -64

Write down the solution for this math problem: Solve -18*q - 12 - 6 = 0 for q.
answer: -1

Write down the solution for this math problem: Solve -378*q - 193*q + 11420 = 0 for q.
answer: 20

Write down the solution for this math problem: Solve 223*l = 47*l - 176 for l.
answer:
-1