Write down the solution for this math problem: Solve 13158*z = 13176*z - 216 for z.
answer: 12

Write down the solution for this math problem: Solve -762*b = 92*b + 17080 for b.
answer: -20

Write down the solution for this math problem: Solve 213194 = 20683*w - 15725*w for w.
answer: 43

Write down the solution for this math problem: Solve 32118*l = 32119*l + 7 for l.
answer:
-7