xy and yx are identical so you have 2xy = 545 ie xy = 272.5.
Possible answers 5 and 54.5, 10.9 and 25 etc
xy + y = z xy = z - y (xy)/y = (z - y)/y x = (z - y)/y
It equals y+1
Just plug in the values for x and y. 4(-1) - 2(5) + (-1)(5) = -19
4
x2y + axy + abx + a2b Factor by grouping. xy(x + a) + ab(x + a) (xy + ab)(x + a)
mid point of xy
xy + y = z xy = z - y (xy)/y = (z - y)/y x = (z - y)/y
true
It equals y+1
x+xy=8 xy=-x+8 y=-1+8/x
"xy" refers to the product of "x" and "y". Just substitute the variables for numbers, and do the multiplication.
If Y = 0 then there is no value of X such that XY = 1.
Just plug in the values for x and y. 4(-1) - 2(5) + (-1)(5) = -19
x and y are being combined using a binary operation called "plus" and the result is xy.
xy + xy = 2xy
It cannot be a property since it is not generally true!
Yes