Section 3.6 Solving Decimal Equations Mr. Beltz & Mr. Sparks.

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Presentation transcript:

Section 3.6 Solving Decimal Equations Mr. Beltz & Mr. Sparks

Goal:  Find exact and approximate solutions of equations that contain decimals.  Approximate : Near or close (estimate)  EX. $1.95 approx. $2.00

Basics Distribute on Both Sides First! Simply the expression (combine like terms) Goal: Get the variable to the left side Solve the Equation using Inverse Relationships Remember: You always want to solve for the Variable, “X = ?”

-38x – 39 = x = x = X = Change Sub --> + Simply the Equation Do the Inverse of Addition [subtraction] The Inverse of Multiplication is Division

24x + 43 = x = X = 0.96 Change Sub --> + Simply the Equation Do the Inverse of Addition [subtraction] The Inverse of Multiplication is Division

Practice  P. 163 # 2-3  Show All work  USE YOUR NOTES AS A GUIDE

Practice P. 163 # 2-3 # 2: #3: -1.12

Independent Practice  P #’s 4-8  SHOW YOUR WORK