Question

Verify x+y=y+x (i) x=-5/14,y=-1/21

Answer 1

Answer:

$x + y = \frac{ - 5}{14} - \frac{1}{21 } = \frac{ - 15 - 2}{42} = \frac{ - 17}{42}$

$y + x = \frac{ -1 }{21} - \frac{5}{14} = \frac{ - 2 - 15}{42} = \frac{ - 17}{42}$

$x + y = y + x$