Question

Решите уравнение: 1 2/3x+5/6x=2 1/2+7/12-4 1/4

Answer 1

$1 frac{2}{3}x+ frac{5}{6}x=2 frac{1}{2}+ frac{7}{12}-4 frac{1}{4}$
$1 frac{4}{6}x+ frac{5}{6}x=2 frac{6}{12}+ frac{7}{12}-4 frac{3}{12}$
$1 frac{9}{6}x=2 frac{13}{12}-4 frac{3}{12}$
$1 frac{9}{6}x=-2 frac{10}{12}$
$1 frac{9}{6}x=-2 frac{5}{6}$
$x=-2 frac{5}{6}:1 frac{9}{6}$
$x=- frac{17}{6}: frac{15}{6}$
$x=- frac{17}{6}* frac{6}{15}$
$x=- frac{17}{15}$
$x=- 1frac{2}{15}$