Write down the solution for this math problem: Solve 107384046*z = 107384122*z - 1976 for z.
answer: 26

Write down the solution for this math problem: Solve -15 = -12*z + z - 4 for z.
answer: 1

Write down the solution for this math problem: Solve 14*l = 441 - 357 for l.
answer: 6

Write down the solution for this math problem: Solve 0 = 3269*a - 3257*a for a.
answer:
0