undo
Undo
To solve an equation it is sometimes helpful to do what to the original operation?
undo
undo the original operation
Extraneous solution
That's an extraneous solution. You need to check for these when algebraically solving equations, especially when you take both sides of an equation to a power.
Original Pirate Material was created on 2002-03-25.
Material of origin not a copy
plug your solution back into the original equation and work it out again
That depends what the original equation is.
x = 00 reduces to x = 0/0. Both are undefined, and thus cannot be considered "equal". Other than that, nothing.
Integration results in an equation which gives the area under the original equation between the bounds. Derivation results in an equation which gives the slope of the original line at any point.