8
x+xy=8 xy=-x+8 y=-1+8/x
18
x and y are being combined using a binary operation called "plus" and the result is xy.
Inverse proportion implies xy = c where c is the constant of [inverse] proportionality. x = 2 and y = 36 implies xy = 72 = c So the relationship is xy = 72 Then, if x = 4, y = 72/x = 72/4 = 18
x = 6y over (y-6)
x+xy=8 xy=-x+8 y=-1+8/x
xy + y = z xy = z - y (xy)/y = (z - y)/y x = (z - y)/y
It equals y+1
xy plus 2x plus 4y plus 8 or (xy+2x) + (4y+8) or x(y+2) + 4(y+2) or (x+4)(y+2)
18
xy = x ÷x y = 1
x and y are being combined using a binary operation called "plus" and the result is xy.
Inverse proportion implies xy = c where c is the constant of [inverse] proportionality. x = 2 and y = 36 implies xy = 72 = c So the relationship is xy = 72 Then, if x = 4, y = 72/x = 72/4 = 18
x = 6y over (y-6)
x + 3y = 4 -x + 2y = -4 Simultan eous eq'ns. Eliminate 'x' by adding. 4 Hence 5y = 0 y = 0 When y = 0 Substitute x + 3(0) = 4 x + 0 = 4 x = 4 So the answer as a coordinate pairs is ( x,y) = ( 4,0)
between X and Y
Yes