Write down the solution for this math problem: Solve 0 = -291*m + 171*m + 192*m - 4464 for m.
answer: 62

Write down the solution for this math problem: Solve 230*l + 479 = 709 for l.
answer: 1

Write down the solution for this math problem: Solve 68*l + 1248 = -18*l - 10*l for l.
answer: -13

Write down the solution for this math problem: Solve -5*d - 31 = -21 for d.
answer:
-2