Question

for x=-9/11 and y=5/7,verify that (-x)+(-y)=-(x+y)​

Answer 1

Answer:

Check the the above solution.

Answer 2

The final value is: 8/77

Step-by-step explanation:

$\ Given \ value:\\\\x= -9/11\\\\y= 5/7\\\\\ find:\\\\\ (-x)+(-y)=-(x+y)\\\\\ Solution:\\\\\ L.H.S \\\\(-x) + (-y) \\\\\rightarrow -(-\frac{9}{11}) + (-(\frac{5}{7})) \\\\\rightarrow \frac{9}{11} - \frac{5}{7} \\\\\rightarrow \frac{63-55}{77} \\\\\rightarrow \frac{8}{77}$

$\ R.H.S \\- (x+y) \\\\-(-\frac{9}{11} +\frac{5}{7})\\\\\rightarrow (\frac{9}{11} -\frac{5}{7})\\\\\rightarrow (\frac{63-55}{77})\\\\\rightarrow \frac{8}{77}$

Learn more:

• Proving: https://brainly.in/question/8112701