Lets start by putting the known number on the other side.
Y3 -7500y=125000. There is your start. Take it from here.
72
no
y3 x y3 - y (3)3 x 3(3) - 3 9 x 9 - 3 = ? 9 x 9= 81 81 - 3 = 78 I hope that solves your problem
3xyz
No, because it is not an equation (or inequality), but simply two expressions separated by a space.
y=3 y^3(y^3-y)= 3^3(3^3-3)= 27(27-3)= 27(24)=648
16y3 / 20y4 = 16/20 * y3/y4 = 4/5 * y3-4 = 4/5 * y-1 or 4/5y
One equation with two unknowns usually does not have a solution.
6y-y3 = 3
If one of them and the other One is exactly the same(capital,letters) then it is equal:D
x3-y3
-y3 + 7y3