Question

verify X+Y =y+x if ​

Answer 1

Answer:

$lhs = x + y \\ \frac{8}{9} + \frac{5}{7} \\ \frac{56 + 45}{63} = \frac{101}{63} \\ \\ \\ \\ rhs = y + x \\ \frac{5}{7} + \frac{8}{9} \\ \frac{45 + 56}{63} = \frac{101}{63} \\ \\ lhs = rhs$

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