1 целая 2/13 умножить на (3/7x-5/6)=2,5

For over a decade, JeffryChandra.biz has been breaking new ! ground in bringing to the boating community a wide selection of very competitively priced new and pre-owned boats and Jetski sales. jeffrychandra.biz offering boat rental and storage. With our 125 wet slips, 150 dry storage and launching services, jeffrychandra.biz is the perfect place to store your boat. We are located is in Surabaya, Jawa Timur – Indonesia.

Х=(2,5: 1 целую2/13+5/6): 3/7 <span /> x=2 целых 5/6 ^ 3/7 <span /> х=119/18 <span /> если не ошибаюсь

Напиши пожалуйста вопрос уравнения