Write down the solution for this math problem: Solve -12590 = -723*z - 606*z + 13990 for z.
answer: 20

Write down the solution for this math problem: Solve 201583*y + 27173 = 200646*y for y.
answer: -29

Write down the solution for this math problem: Solve 341*j + 115 = 296*j - 560 for j.
answer: -15

Write down the solution for this math problem: Solve -2*m + 6*m - 12 = 0 for m.
answer:
3