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To Start: 10 Points
Chapter 7: Solving Equations and InequalitiesSection 7.3: Solving Multi-step Equations with Fractions and Decimals
Solving multi-step equations!!!Remember: When the coefficient of a variable in an equation is a fraction, you multiply by the reciprocal.
Solving multi-step equations!!!Solve: Multiply each side by the reciprocal
Solving multi-step equations!!!Solve: Add 6 to each side Multiply each side by the reciprocal
Solving multi-step equations-You try!!!Solve: Subtract 14 from each side Multiply each side by the reciprocal
Solving multi-step equations-You try!!!Solve: Distribute! Add 4 to each side Multiply each side by the reciprocal
Hint!!! When you have to distribute a fraction, instead, multiply both sides by the reciprocal. Example:
You try!!! Solve: Multiply both sides by the reciprocalSubtract 6 from each side
You try Again!!! Solve: Distributive propertySubtract .8 from each side Divide each side by .4
Homework!!!!! Page 348: 1-8, 11-24
Example 2 4 m 8 m 5m 12 m x y.
Solving Equations with Brackets or Fractions. Single Bracket Solve 3(x + 4) = 24 3x + 12 = 24 3x + 12 – 12 = x = 12 x = 4 Multiply brackets out.
Aim: How do we solve equations with fractional or negative exponents?
Do Now 1/25/10 Take out HW from Friday. Take out HW from Friday. Text page 245, #16-34 evens, #37 Text page 245, #16-34 evens, #37 Copy HW in your planner.
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EXAMPLE 2 Solving an Equation Involving Decimals 1.4x – x = 0.21 Original equation. (1.4x – x)100 = (0.21)100 Multiply each side by 100.
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