Write down the solution for this math problem: Solve 894*f - 735 = 336*f + 320*f + 385*f for f.
answer: -5

Write down the solution for this math problem: Solve -347 = -209*f + 1730 + 7328 for f.
answer: 45

Write down the solution for this math problem: Solve -394550 + 394600 = 5*z for z.
answer: 10

Write down the solution for this math problem: Solve 19*q + 3260 - 3051 = 0 for q.
answer:
-11