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81x+81y+31x+31y=36\large 81^x + 81^y + 3^{\frac1x} + 3^{\frac1y} = 36 81x+81y+3x1+3y1=36
How many ordered pairs of (x,y)(x,y) (x,y) satisfy the equation above if xy>0xy>0 xy>0?
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