Write down the solution for this math problem: Solve -34 + 35 = a for a.
answer: 1

Write down the solution for this math problem: Solve -277*f + 394*f = -309*f + 5112 for f.
answer: 12

Write down the solution for this math problem: Solve 0 = 39*m - 64*m + 25 for m.
answer: 1

Write down the solution for this math problem: Solve -21*n + 4341 - 4467 = 0 for n.
answer:
-6