An equals sign.
It COULD have variables, but they are not necessary.
For example:
1 + 1 = 2
2 + 2 = 4
2x = 8
y = 4x
y = x2 + 2x + 1
y = 4 (0.5)x
Identity equation
Seems to me like if it's not always true, then it's no equation.
no
will always begin with an equal sign
When in doubt always square both sides of the equation.
In math, an equation that is always true is called an identity.
Identity equation
Seems to me like if it's not always true, then it's no equation.
no
an equation ---------- has a soultion? a)always B)sometimes C)never
An example of an equation that will always equal 12 is x=12. x will never change and will always be equivalent to 12.
will always begin with an equal sign
No
When in doubt always square both sides of the equation.
The equation of a straight line can always be put into the form "y=mx+c".
Does a multi-step equation sometimes, always, or never have a solution?
An equation that is always true is an identity.