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Lesson 1-5 Pages 24-27. Algebra: Equations. Lesson Check 1-4. What you will learn!. How to solve equations. Vocabulary. What you really need to know!. An equation is a sentence in mathematics that contains an equal sign. - PowerPoint PPT Presentation
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EquationEquation
SolutionSolution
Solving an equationSolving an equation
Defining the variableDefining the variable
What you really need to know!An equation is a sentence in mathematics that contains an equal sign.
The solution of an equation is the value that when substituted for the variable makes the equation true.
Example 3
An adult paid $18.50 for herself and two students to see a movie. If the two student tickets cost $11 together, what is the cost of the adult ticket?
a + 11 = 18.50
$7.50