Lesson 6 homework practice add linear expressions page 81 answer key

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 5: Expressions; Lesson 6: Add Linear Expressions

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Independent Practice

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Question 1
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\((4x + 8) + (7x + 3) =\)
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Question 2
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\((-3x + 7) + (-6x + 9) =\)
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Question 3
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\((x - 10) + (3x - 6) =\)
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Question 4
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\((-3x - 7) + (4x + 7) =\)
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Question 5
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\(2(x + 14) + (2x - 14) =\)
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Question 6
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\((11x - 8) + 7(x - 1) =\)
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Question 7
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Write a linear expression in simplest form to represent the perimeter of the triangle at the right. Then find the perimeter if the value of x is 10 millimeters.
\(\text{mm}\)

Question 8
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A rectangle has side lengths (2x - 5) meters and (2x + 6) meters. Write a linear expression in simplest form to represent the perimeter. Find the perimeter if the value of x is 12 meters.
\(\text{m}\)

Question 9
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Find the sum of (x + 5), (-4x - 2), and (2x - 1).
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Question 10
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\((-3.5x + 1.7) + (9.1x - 0.3) =\)
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Question 11
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\((0.5x + 15) + (8.2x - 16.6) =\)
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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 5: Expressions; Lesson 6: Add Linear Expressions

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Extra Practice

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Question 17
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Question 18
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\((-4x + 3) + (-2x + 8) =\)
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Question 19
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\((-6x + 5) + (4x - 7) =\)
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Question 20
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\((–4x + 5) + (15x - 3) =\)
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Question 21
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\((-5x + 4) + -1(x - 1) =\)
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Question 22
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\(17(2x - 5) + (-x + 4) =\)
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Question 23
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Write a linear expression in simplest form to represent the perimeter of the trapezoid at the right. Then find the perimeter if the value of x is 7 yards.
\(\text{yd}\)

Question 24
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Reason Abstractly The table shows the points earned by a contestant in four rounds on a game show.

a. Write a linear expression in simplest form to represent the total points earned by the contestant in rounds 1 and 2.
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Question 24
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b. Write a linear expression in simplest form to represent the total points earned in all four rounds.
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Question 24
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c. If the value of x is 8, what is the total points earned in all four rounds?

lesson homework practice add linear expressions page answer key