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49x - 57y = 172; 57x - 49y = 252 |
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Answer» Answer: 57x - 49y = 252 49x = 172 + 57y x = 172+57y/48 ....................(1) 57 * 172+57y / 48 - 49y = 252 19*172+57y/16 -49y =252 3268+1083y/16 -49y = 252 3268+1083y - 784y/16=252 3268+299y = 252 * 16 3268 + 299y = 4032 299y = 4032-3268 299y= 764 y = 764/299 y= 2.5 put VALUE of y in EQUATION (1) x= 172 + 57(2.5)/48 x= 146 |
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