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Solving One-Step Equations Unit 10
To Solve an Equation 1.Isolate the variable – get the letter by itself Inverse Operation 2.Use the Inverse Operation to isolate the variable. 1.Addition Subtraction 2.Multiplication Division
when a number sits next to a variable with nothing in between the two, the operation is multiplication. EX: 2x=16 Multiplication
Number to move: the “2” 2x = 16 Operation being used: “x” Opposite of “x”: “ ” Example: x = 8 2 2
Divide each side by negative 3 x = -7 -3x = 21 -3
When a number is written as a fraction, the operation is division. Division
Number to move: the “2” x = 8 Operation being used: “ ” Opposite of “ ”: “x” 2
Multiply each side by 2 x = 16 x = 8 2 (2)
Balance http://nlvm.usu.edu/en/nav/frames_asid_201_g_3_t_2.html? open=instructions&from=category_g_3_t_2.html http://nlvm.usu.edu/en/nav/frames_asid_201_g_3_t_2.html? open=instructions&from=category_g_3_t_2.html
Homework Page # http://www.brainpop.com/math/algebra/equationswithvariables/
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= ©Powered Chalk LLC 2009 Title slide. To solve for x undo all the operations around it by doing opposite operations. Whatever you do to one side you.
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