By Margaret L. Lial, John Hornsby, Terry McGinnis

**Is there something extra appealing than an “A” in Algebra?** to not the Lial staff! Marge Lial, John Hornsby, and Terry McGinnis write their textbooks and accompanying assets with one target in brain: giving scholars and academics all of the instruments they should be successful.

With this revision of the Lial Developmental Algebra sequence, the crew has additional subtle the presentation and workouts through the textual content. they give numerous interesting new assets for college students and lecturers that might supply additional support whilst wanted, whatever the studying surroundings (traditional, lab-based, hybrid, online)—new examine abilities actions within the textual content, an up-to-date and multiplied Lial Video Library (available in MyMathLab), and a brand new accompanying Lial Video Library Workbook (available in MyMathLab)*.*

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Hirsch and Goodman supply a mathematically sound, rigorous textual content to these teachers who think scholars can be challenged. The textual content prepares scholars for destiny examine in higher-level classes by means of steadily development scholars' self assurance with out sacrificing rigor. to aid scholars flow past the "how" of algebra (computational talent) to the "why" (conceptual understanding), the authors introduce themes at an trouble-free point and go back to them at expanding degrees of complexity.

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**Example text**

1 30 90. 06 22 CHAPTER 1 Review of the Real Number System Exercises 91–116 provide more practice on operations with fractions and decimals. Perform the indicated operations. 91. 1 7 - a- b 6 9 92. 7 1 - a- b 10 6 93. - 1 7 + 9 12 11 4 15 9 94. - 1 13 + 12 16 95. - 3 5 8 12 96. - 97. - 7 2 3 + 30 45 10 98. - 8 3 7 + 15 20 6 99. 5 9 4 a- b a- b 6 10 5 102. 100. 9 7 a- b 20 15 7 9 , a- b 103. 6 10 101. 5 8 a- b 25 12 4 9 5 a- b a- b 3 20 12 8 9 2 - 12 18 , a- b 104. 5 25 105. 107. 751 108. 582 109.

101 p - q2 15. 5k + 3k 16. 6a + 5a 17. 7r - 9r 18. 4n - 6n 19. - 8z + 4w 20. - 12k + 3r 21. a + 7a 22. s + 9s 23. - 12d - ƒ2 24. - 13m - n2 25. - 1- x - y2 26. - 1- 3x - 4y2 Simplify each expression. See Examples 1–4. 27. - 12y + 4y + 3 + 2y 28. - 5r - 9r + 8r - 5 29. - 6p + 5 - 4p + 6 + 11p 30. - 8x - 12 + 3x - 5x + 9 31. 31k + 22 - 5k + 6 + 3 32. 51r - 32 + 6r - 2r + 4 35. 516 + 2p2 36. 815 + 10x2 39. 2 + 312z - 52 - 314z + 62 - 8 40. - 4 + 414k - 32 - 612k + 82 + 7 33. - 21m + 12 - 1m - 42 37.

1 NOW TRY EXERCISE 11 Basic Concepts 11 EXAMPLE 11 Graphing a Three-Part Inequality Write in interval notation and graph. 5x | - 2 … x 6 46 Write 5x | 3 6 x … 106 in interval notation and graph the interval. Use a parenthesis at 3 and a square bracket at 10 to write the interval 13, 104. The graph is shown in FIGURE 15. ” NOW TRY ANSWER 11. 1 EXERCISES Write each set by listing its elements. See Example 1. 1. 5x | x is a natural number less than 66 2. 5m | m is a natural number less than 96 5. 5z | z is an integer less than or equal to 46 6.

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Categories: Elementary