Write down the solution for this math problem: Solve 13*w + 1098 = 77*w + 58*w for w.
answer: 9

Write down the solution for this math problem: Solve 106*u - 58*u = -160*u + 4368 for u.
answer: 21

Write down the solution for this math problem: Solve -15335*l - 2525 = -15399*l + 419 for l.
answer: 46

Write down the solution for this math problem: Solve 26 = -65*t + 39*t for t.
answer:
-1