New Tube Puzzle

IT is a long time since I posted a Tube Puzzle, so here is a serial number taken from a Central Line train while returning home from a club match last week: 91259.
As usual, each number should be used once, and once only, and must be added, subtracted, multiplied or divided to make a balanced equation.
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My solution:  9 - 5 (x2)  = 9 - 1