Question

verify that
$- ( - x) = x$
$(i) x = \frac{11}{15}$
$(i)x = \frac{13}{17}$


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Answer 1

1.) -(-11/15) = 11/15

= minus minus equals to plus

=> 11/15=11/15

2.) similarly

=> 13/17=13/17

Hope it helps you.