Приведите подобные слагаемые:
а) $\frac{3}{5}x + \frac{2}{15}x$;
б) $-\frac{3}{5}x - \frac{2}{15}x$;
в) $-\frac{3}{5}x + \frac{2}{15}x$;
г) $\frac{3}{5}x - \frac{2}{15}x$.
$\frac{3}{5}x + \frac{2}{15}x = \frac{9}{15}x + \frac{2}{15}x = \frac{11}{15}x$
$-\frac{3}{5}x - \frac{2}{15}x = -\frac{9}{15}x - \frac{2}{15}x = -\frac{11}{15}x$
$-\frac{3}{5}x + \frac{2}{15}x = -\frac{9}{15}x + \frac{2}{15}x = -\frac{7}{15}x$
$\frac{3}{5}x - \frac{2}{15}x = \frac{9}{15}x - \frac{2}{15}x = \frac{7}{15}x$
Пожауйста, оцените решение
