4[x+3]=4x+12
4x+12=4x+12
it's open.
16 = 16 is an identity, not an equation. An identity does not have solutions.
... which is 2x + 2 = x so x = -2
That word "equals" in there makes it an equation.
An equation. (Both "equals" and "equation" have the Latin root aequatio.)
It is, in fact, an identity - which is an equation which is true for all values of the variable.
An equation or, possibly, an identity.
16 = 16 is an identity, not an equation. An identity does not have solutions.
An equation.
This is an equation.
Neither. It is an equation.
... which is 2x + 2 = x so x = -2
An equation. (Both "equals" and "equation" have the Latin root aequatio.)
That word "equals" in there makes it an equation.
No. It is only true for one value of x so it is an equation. An identity must be true for all values of x. An identity equation is like saying "in other words ... ".
It is, in fact, an identity - which is an equation which is true for all values of the variable.
This is the identity property: the additive identity property of zero.
0 = 0 is an identity and not an equation. Equations have solutions, identities do not.