Yes.
If it doesn't have an equal sign, then it's not an equation.
Its the Equal sign =
An expression has no equal sign whereas an equation does have an equal sign
An equation is equal if you have a math problem on each side of an equal sign.
It is an expression because an equation is two equal expressions separated by an equality sign.
An equation
Equation: x+3=3+x (notice the equal sign: equal; equation)Expression: x+3 (notice no equal sign)
Equation: x+3=3+x (notice the equal sign: equal; equation)Expression: x+3 (notice no equal sign)
Yes, when the inequality has a less that or equal to sign, or a greater than sign or equal to sign, then the equal sign can be replaced and get a solution that is common to both the equation and the inequality. There can also be other solutions to the inequality, where as the solution for the equation will be a valid one.
Yes
an equation