# Solution or Not?

## Work Time

# Solution or Not?

When a given number is substituted for a variable in an equation or an inequality, and the resulting equation or inequality is true, that number is a *solution* to the equation or inequality.

NOTE: Ignore the instructions on the interactive and follow the steps below.

- Is 2 a solution to 2
*x*+ 5 =*x*+ 7? - Check your answer by substituting 2 for each
*x*on the balance scale. Does the scale become balanced?

INTERACTIVE: Balance Scale X