Question

verify that -(- x)+(-y), when (a)7/6. (b)-8/9​

Answer 1

Answer:

-(-x) + (-y)

When x = 7 and y = 6;

= -(-7) + (-6)

= 7 - 6

= 1 Answer

When x = -8 and y = 9;

= -(-(-8)) + (-9)

=-(+8) - 9

= -8 -9

= -17 Answer