Question

$frac{5}{17} - ( frac{7}{17} - x)= frac{2}{3}$
помогите

Answer 1

$frac{5}{17} - frac{7}{17} +x= frac{2}{3} /*51 \ 15-21+51x=34 \ -6+51x=34 \ 51x=34+6 \ 51x=40 \ x=40:51 \ x= frac{40}{51}$