Write down the solution for this math problem: Solve -189*j = 65*j - 7366 for j.
answer: 29

Write down the solution for this math problem: Solve 820 = 80*q + 65*q + 240 for q.
answer: 4

Write down the solution for this math problem: Solve -12*v - 3*v = 75 for v.
answer: -5

Write down the solution for this math problem: Solve -66*r + 251 + 1113 = -128*r for r.
answer:
-22