Автор - Unicornslime18

Пожалуйста срочно решите​

Ответ

Автор - denisstretyakov

 frac{2}{3}  cdot(x + 3) +  frac{3}{4} (x  - 1) = 14 \  frac{2}{3} x + 2 +  frac{3}{4} x -  frac{3}{4}  = 14 \  frac{2}{3} x +  frac{5}{4}  +  frac{3}{4} x = 14 :  :  :  :  :  | cdot12 \ 8x + 15 + 9x = 168 \ 17x + 15 = 168 \ 17x = 168 - 15 \ 17x = 153 \ x = 153 div 17 \  bold{x = 9}

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