Write down the solution for this math problem: Solve 138*z + 26 = 66*z + 1466 for z.
answer: 20

Write down the solution for this math problem: Solve 0 = -420*h - 6487 - 233 for h.
answer: -16

Write down the solution for this math problem: Solve 78102 = -134*s + 69124 for s.
answer: -67

Write down the solution for this math problem: Solve -4*w - 31 = -11 for w.
answer:
-5