Fundamentals of Mathematics, 2008a

648 CHAPTER 11. ALGEBRAIC EXPRESSIONS AND EQUATIONS
Exercise 11.4.38 (Solution on p. 685.)
3m − 4 = 2m + 6
Exercise 11.4.39
5a + 6 = 4a − 8
Exercise 11.4.40 (Solution on p. 685.)
8b + 6 + 2b = 3b − 7 + 6b − 8
Exercise 11.4.41
12h − 1 − 3 − 5h = 2h + 5h + 3 (−4)
Exercise 11.4.42 (Solution on p. 685.)
−4a + 5 − 2a = −3a − 11 − 2a
Exercise 11.4.43
−9n − 2 − 6 + 5n = 3n − (2) (−5) − 6n
Calculator Exercises
Exercise 11.4.44 (Solution on p. 685.)
y − 2.161 = 5.063
Exercise 11.4.45
a − 44.0014 = −21.1625
Exercise 11.4.46 (Solution on p. 685.)
−0.362 − 0.416 = 5.63m − 4.63m
Exercise 11.4.47
8.078 − 9.112 = 2.106y − 1.106y
Exercise 11.4.48 (Solution on p. 685.)
4.23k + 3.18 = 3.23k − 5.83
Exercise 11.4.49
6.1185x − 4.0031 = 5.1185x − 0.0058
Exercise 11.4.50 (Solution on p. 685.)
21.63y + 12.40 − 5.09y = 6.11y − 15.66 + 9.43y
Exercise 11.4.51
0.029a − 0.013 − 0.034 − 0.057 = −0.038 + 0.56 + 1.01a
11.4.5.1 Exercises for Review
Exercise 11.4.52 (Solution on p. 685.)
(Section 7.2) Is 7 calculators
12 students
an example of a ratio or a rate?
Exercise 11.4.53
(Section 7.5) Convert 3 8
% to a decimal.
Exercise 11.4.54 (Solution on p. 685.)
(Section 7.6) 0.4% of what number is 0.014?
Exercise 11.4.55
(Section 8.3) Use the clustering method to estimate the sum: 89 + 93 + 206 + 198 + 91
Exercise 11.4.56 (Solution on p. 686.)
(Section 11.3) Combine like terms: 4x + 8y + 12y + 9x − 2y.
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