Question

ПОМОГИТЕ ПЛИИС 100 БАЛОВ
номер 997

Answer 1

$frac{5}{8} x - ( frac{1}{4} x - frac{1}{12} y) + frac{1}{3} y = frac{5}{8} x - frac{1}{4} x + frac{1}{12} y + frac{1}{3} y = frac{3}{8} x + frac{2}{12} y - frac{5}{3} y = 11.4x - frac{199}{12} y$
$9.4x + (2x - 11 frac{3}{4} y) - 3 frac{5}{9} y = 9.4x + (2x - frac{33}{4} y) - frac{5}{3} y = 9.4x + 2x - frac{33}{4} y - frac{5}{3} y = 11.4x - frac{199}{12} y$
$2 frac{1}{6} x - (7x - 1 frac{3}{4} y) + 2 frac{1}{4} y = frac{1}{3} x - (7x - frac{3}{4} y) + frac{1}{2} y = frac{1}{3} x - 7x + frac{3}{4} y + frac{1}{2} y = - frac{20}{3} x + frac{5}{4} y$
$3.5x + (6 frac{1}{4} x - 7y) - 7y = 35x + (3 times frac{1}{2} x - 7y) - 7y = 3.5x + ( frac{3}{2} - 7y) - 7y = 3.5x + frac{3}{2} x - 7y - 7y = frac{7}{2}x + frac{3}{2} x - 14y = 5x - 11y$