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Introductory Algebra by Julie Miller, Molly O’Neill, and Nancy Hyde VIDEO LECTURE EXERCISES: Section 1.6 Properties of Real Numbers and Simplifying Expressions For Exercise 25, rewrite the expression using the commutative property of addition or the commutative property of multiplication. (See Examples 1 and 3.) 25. x(–12) For Exercise 37, use the associative property of multiplication to rewrite the expression. Then simplify the expression if possible. (See Example 4.) ⎛ 1 ⎞ 37. − 4⎜ − t ⎟ ⎝ 4 ⎠ For Exercise 63, use the distributive property to clear parentheses. (See Examples 5–6.) 63. – (–6w + x – 3y) For Exercise 79, for the expression list the terms and their coefficients. (See Example 7.) 79. 2x– y +18xy + 5 For Exercise 117, simplify by clearing parentheses and combining like terms. (See Examples 10–11.) 117. 8k – 4(k – 1) + 7 – k