It equals y+1
4
y=f(x)= x(2x+y)=7 f(x)=2x^2 +xy -7 = 0 y=2x^2 +xy -7 y-xy -7 + 2x^2 = 0 y(1-x)=2x^2-7 y=(2x^2-7) / (1-x) Excuse the working. Y equals 2 X squared minus 7 all divided by 1-X
0
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
x+xy=8 xy=-x+8 y=-1+8/x
xy = x ÷x y = 1
It equals y+1
x = 6y over (y-6)
x and y are being combined using a binary operation called "plus" and the result is xy.
xy + x + y + 1 = (x + 1)(y + 1).
4
y=(x+2)/(x+10) xy+10y=x+2 xy-x=2-10y x(y-1)=2-10y x=(2-10y)/(y-1)
Yes
between X and Y
xy + z = 9Subtract 'z' from each side:xy = 9 - zDivide each side by 'x':y = (9 - z) / x
(x-y) + (xy - 1) = (x - 1)(y + 1)