Question

0.5 упростите выражен ие​

Answer 1

Ответ:

Вычислить:

$1)\ \displaystyle \frac{5}{8}x-\Big(\frac{1}{4}x- \frac{1}{12}y\Big)+\frac{1}{3}\, y=\Big(\frac{5}{8}x-\frac{1}{4}x\Big)+\Big(\frac{1}{12}y+\frac{1}{3}y\Big)=\frac{3}{8}x +\frac{5}{12}\, y\\\\\\2)\ \ 9,4y+\Big(2x-11\frac{1}{4}\, y\Big)-3\frac{5}{9}\, x=\Big(9\frac{2}{5}y-11\frac{1}{4}\, y\Big)+\Big(2x-3\frac{5}{9}\, x\Big)=\\\\=-1\frac{17}{20}\, y-1\frac{5}{9}\, x$

$\displaystyle 3)\ \ 2\frac{1}{6}\, y-\Big(7x-1\frac{3}{4}\, y\Big)=\Big(\frac{13}{6}\, y+\frac{7}{4}\, y\Big)-7x=\frac{47}{12}\, y-7x=3\frac{11}{12}\, y-7x$

$\displaystyle 4)\ \ 3,5x+\Big(6\frac{1}{4}\, y-7x\Big)=\Big(3,5x-7x\Big)+6\frac{1}{4}\, y=-3,5x+6,25y$