What does it mean for a number to be the "solution" to an equation?

Give an example of a variable equation and its solution.
Explain in complete sentences how you know that number is the solution.

Question

What does it mean for a number to be the "solution" to an equation?

    Give an example of a variable equation and its solution.
    Explain in complete sentences how you know that number is the solution.

anonymous · Answer

The number "satisfies" the equation ie if you substitute the number for the variable, the expression is valid.

4x = 8 Solution is 2 because 4*2 = 8