Download Algebra Success in 20 Minutes a Day (2nd Edition) by LearningExpress Editors PDF

By LearningExpress Editors

For brand spanking new algebra scholars or these looking a refresher, this e-book bargains a chain of easy 20-step lesson plans that emphasize speedy studying of useful, crucial talents. This up to date variation eschews pointless jargon and will get all the way down to the necessities:
• insurance of all very important algebra talents, from combining like phrases to fixing quadratic equations
• hundreds and hundreds of perform workouts, together with notice difficulties
• An emphasis at the applicability of algebra talents to real-world (and real-work) difficulties
• Bonus sections, together with tips for getting ready for standardized exams

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Extra resources for Algebra Success in 20 Minutes a Day (2nd Edition)

Sample text

If there are 18 girls in the class, how many boys are in the class? Let x = the number of boys in the class. Then 2 times the number of boys is equal to the number of girls. You can represent that in the equation 2x = 18. x = 9; therefore, there are 9 boys in the class. Example: You are going to be working for Success Corporation. 50 an hour. If you are paid monthly, how much will your first paycheck be? Be sure to include your signing bonus, and assume that you have a 40-hour work week and there are 4 weeks in this month.

Simplify both sides of the equation. Divide both sides of the equation by 5. Simplify both sides of the equation. 5x – 2 + 2 = 13 + 2 5x = 15 x 5 ᎏ5ᎏ ᎏ1ᎏ 5 = 5 x=3 x Example: ᎏ9ᎏ + 4 = 13 Subtract 4 from both sides of the equation. ᎏxᎏ + 4 – 4 = 13 – 4 9 ᎏxᎏ = 9 9 ᎏxᎏ · 9 = 9 · 9 9 Simplify both sides of the equation. Multiply both sides of the equation by 9. Simplify both sides of the equation. x = 81 Example: 18 = 9 – 3x Subtract 9 from both sides of the equation. Simplify both sides of the equation.

Subtract 3 from both sides of the equation. Simplify both sides of the equation. Subtract 3x from both sides of the equation. Simplify both sides of the equation. Divide both sides of the equation by 2. Simplify both sides of the equation. 5x + 3 = 3x + 15 5x + 3 – 3 = 3x + 15 – 3 5x = 3x + 12 5x – 3x = 3x – 3x + 12 2x = 12 2x 12 ᎏ ᎏ = ᎏᎏ 2 2 x=6 Example: 4x + 6 = –2(3x + 4) Use the distributive property. Subtract 6 from both sides of the equation. Simplify both sides of the equation. Add 6x to both sides of the equation.

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