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.

Answer 1

means if you replace the variable in the equation by the number, you get a true equality.
for example, the number \(5\) is a solution to the following
\[x=5\]
\[2x=10\]
\[2x+4=14\]
\[2(2x+4)=28\]
\[2(2x+4)-5=23\] and so on