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Mathematics, 05.02.2021 14:00 yudayang2012pa9u8p

stephs weight in kilograms is 2x + 9 kyles weight in kilograms is 4x +7 write down an expression in terms of x for the mean of their weights

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stephs weight in kilograms is 2x + 9 kyles weight in kilograms is 4x +7 write down an expression in...
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