Question

find the value of x-y and y-x for x = -2/7 and y=5/7 . Are they equal​

Answer 1

Answer:

Step-by-step explanation:

For x-y:

$-\frac{2}{7} - \frac{5}{7} \\-(\frac{2}{7} + \frac{5}{7} )\\-(\frac{2+5}{7})\\-\frac{7}{7} \\-1$

For y-x:

$\frac{5}{7} - (-\frac{2}{7}) \\\frac{5}{7} + \frac{2}{7} \\\frac{5+2}{7} \\\\\frac{7}{7} \\1$

Therefore, they aren't equal!

Answer 2

Answer

Open in answr app

Correct option is

A

2

Given:

x+y=5, and

x=3

Substituting the value of x in the given equation, we get

3+y=5

⇒y=2