Create a Table of Values from an Equation

This video tutorial teaches how to solve equations with two variables using substitution. It begins with a simple equation, x + y = 7, demonstrating how to create a table of values by substituting different values for x and y. The tutorial then progresses to a more complex equation, x^2 + y^2 = 25, showing how to solve it by taking square roots and considering both positive and negative solutions. The importance of checking solutions in the original equation is emphasized throughout.

What are the pairs of values you can derive when substituting 2 for x in the equation x squared plus y squared is equal to 25?

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Describe the steps taken to solve for x when y is substituted with negative 4 in the equation x squared plus y squared is equal to 25.

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