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Section 3.2 Solving Equations Using Multiplication & Division Mr. Beltz & Mr. Sparks.

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Presentation on theme: "Section 3.2 Solving Equations Using Multiplication & Division Mr. Beltz & Mr. Sparks."— Presentation transcript:

1 Section 3.2 Solving Equations Using Multiplication & Division Mr. Beltz & Mr. Sparks

2 Goal:  Solve linear equations using multiplication and division.  Remember, Multiplication and Division are Inverse Properties.

3 Same steps: ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation

4 3x = 9 ---------- --------- 3 3 X = 3 ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation MULTIPLICATION

5 Independent Practice 60 = 5x -3x = -9 -4x = 1

6 Solutions 60 = 5x X = 12 -3x = -9X = 3 -4x = 1 X = -1 4

7 X = 10 2 2*X 10 * 2 2 X = 20 ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation DIVISION

8 Independent Practice X = 11 3 X = -2 4 7 = X 7

9 Solutions: X = 11X = 33 3 X = -2X = -8 4 7 = XX = 49 7

10 Practice Pg. 141 #6 -14


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