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(x) x+y +x-y = 554455 |
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Answer» (x+y)/5 + (x-y)/4 = 54x+4y+5x-5y=1009x-y=100...........(1)(x+y)/4 + (x-y)/5 = 29/55x+5y+4x-4y=1169x+y=116..........(2)(2)-(1);2y=16y=8x=12 |
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