Question

For x=7/-9,y=-6/7, show that x-y is not equal to y-x. Your answer will be BRAINLIEST if you solve this ... Bet ya

Answer 1

Step-by-step explanation:

$x = \frac{ - 7}{9} \: \: \: \: \: \: \:and \: \: \: \: \: \: \: \: \: \: y = \frac{ - 6}{7}$

$x - y = \frac{ - 7}{9} - ( \frac{ - 6}{7} ) \\ x - y = - \frac{ - 7}{9 } + \frac{6}{7} \\ x - y = 5$

$y - x = \frac{ - 6}{7} - ( \frac{ - 7}{9} ) \\ y - x = \frac{ - 6}{7 } + \frac{7}{9} \\ y - x = - 5$

$5 \: \: is \: \: not \: \: equal \: \: to \: \: ( - 5) \\ so \\ (x - y )\: \: not \: equa \: to \: (y - x)$

Answer 2

Step-by-step explanation:

Given, x=-7/9 and y=-6/7

Now,

$x - y \\ = \frac{ - 7}{9} - ( \frac{ - 6}{7} ) \\ = \frac{ - 7}{9} + \frac{6}{7} \\ = \frac{6}{7} - \frac{7}{9} \\ = \frac{54 - 49}{63} = \frac{ 5}{63}$

Now,

$y - x \\ = \frac{ - 6}{7} - ( \frac{ - 7}{9} ) \\ = \frac{7}{9} - \frac{6}{7} \\ = \frac{49 - 54}{63} \\ = \frac{ - 5}{63}$

So, x-y=5/63 and y-x=-5/63.

They both are not equal.

Hence proved

Thank you