Answer:
The value of x=27
Step-by-step explanation:
(x-y) ² - x+y
x ² - 2xy + y ² - x + y
or
x(x-1) + y(y+1) - 2xy
my brains just died trying to read this
4n+20
x-5=-13
move -5 to the other side
sign changes from -5 to+5
x-5+5=-13+5
x=-13+5
answer:
x=-8