Write down the solution for this math problem: Solve 4741*u = 4711*u + 270 for u.
answer: 9

Write down the solution for this math problem: Solve 122*m + 63 = 185 for m.
answer: 1

Write down the solution for this math problem: Solve -979 = 13*z - 1031 for z.
answer: 4

Write down the solution for this math problem: Solve 92*r - 3402 = -97*r for r.
answer:
18