Question

(1 5/4х+3 1/3)*1 3/19=16.5 Поможіть срочно!!!!!

Answer 1

$(1frac{5}{4}x+3frac{ 1}{3} )*1 frac{3}{19} =16.5\\ ( frac{9}{4}x+ frac{ 10}{3} )* frac{22}{19} =16.5 /*19\\ ( frac{9}{4}x+ frac{ 10}{3} )*22 =313,5\\frac{99}{2}x +frac{220}{3}=313,5 /*6\\297x+440=1881\\297x=1881-440\\297x=1441 /:297\\x=4frac{253}{297}\\x= 4frac{23}{27}$