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All examples are from the Big Ideas Math 8 Textbook
Equations Notes All examples are from the Big Ideas Math 8 Textbook
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One Step Equation by add or subtract
Ex 1 x - 7= -6 Ex 2 y = 0.5
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One Step Equation multiply or divide
Ex 3 Ex 4
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Word Problem The melting point of a solid is the temperature at which the sold becomes a liquid. The melting point of bromine is 1/30 of the melting point of nitrogen. Write and solve an equation to find the melting point of nitrogen.
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Two Step Equation Ex 1 1.5x + 15 = 24
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Combine Like Terms Ex 2 8x - 6x - 25 = -35
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Distributive Property in Equations
Ex 3 2(1 - 5x) + 4 = - 8
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Word Problem Use the table to find the number of miles x you need to run on Friday so that the mean number of miles run per day is 1.5
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Equations with Variables on Both Sides Lesson 1.3
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Example of One Solution
-2 (x-5) = 6( 2 - ½ x)
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Example of No Solution 3 - 4x = x
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Example of Infinite Solution
6x + 4 = 4 ( 3/2 x + 1)
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Real World Application Example
Write and solve an equation to find the number of miles you must drive to have the same cost for each of the car rentals. x = x 0.25 x = 10 x= 40
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Lesson 1.4 Rewriting equations
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Example 1 Rewrite an equation
solve the equation 2y + 5x = 6 for y
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Example 2 Rewrite a Formula
Solve for l for the following
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Example 3 Rewriting Temperature
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