Write down the solution for this math problem: Solve 86 = 28*w - 138 for w.
answer: 8

Write down the solution for this math problem: Solve -139*b = -103*b - 3849 + 4425 for b.
answer: -16

Write down the solution for this math problem: Solve -17*h + 23*h + 36 = 0 for h.
answer: -6

Write down the solution for this math problem: Solve -527*n = -538*n - 11 for n.
answer:
-1