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  • 3 years ago

7b+5a=63 b+a=?

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  1. shubhamsrg
    • 3 years ago
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    assuming a and b are natural nos, a= (7/5)(9-b) 9-b can only be 5 or 0 (easy to understand this) hence (a,b) can be (7,4) or (0,9) for natural nos, only possible of a+b = 11

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