Question

If X=-2/3 and Y=1/4, find (X+Y)+(X-Y)​

Answer 1

Step-by-step explanation:

$( - \frac{2}{3} + \frac{1}{4} ) + ( - \frac{2}{3} - \frac{1}{4} ) \\ = - \frac{2}{3} + \frac{1}{4} - \frac{2}{3} - \frac{1}{4} \\ = \frac{ - 2 - 2}{3} \\ = - \frac{4}{3}$

Answer 2

Answer:

x+y= -2/3+1/4= -5/12. x-y= -2/3-1/4= -11/12.