Ch 7 Review Linear Equations

Quiz by Marie Scaglione

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12 questions
• Q1
1. Find 6(−3)
9
18
-18
-9
300s
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• Q2
2. Find (−2)(−8)
10
-10
-16
16
300s
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• Q3
3. Use the Distributive Property to write the expression as an equivalent numeric expression. Then evaluate the expression. 3.5(8 − 2)
3.5 · 8 − 3.5 · 2; 21
3.5 · 6; 21
3.5 · 8 −2; 26
3.5 · 8 + 3.5 · 2; 35
300s
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• Q4
4. Identify the coefficients and constants in the expression. 2x − y + 5x
coefficients: 2 and 5 constants: 1
coefficients: 2, –1, 5 constants: none
coefficients: 2, 1, 5 constants: none
coefficients: 2 and 5 constants: –1
300s
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• Q5
5. Simplify 6c − 2d + 9d + 10c
15c + 8d
16c − 11d
4c + 19d
16c + 7d
300s
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• Q6
6. Find the sum (5x − 2) + (x + 8)
6x − 16
6x + 6
6x + 10
6x - 6
300s
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• Q7
7. Find the sum (6x + 4) + (−3x + 1)
−3x + 5
9x + 5
3x + 4
3x + 5
300s
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• Q8
8. Find the difference (−6x − 2) − (3x + 8)
-9x - 10
−9x + 6
−9x − 6
−3x − 10
300s
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• Q9
9. The expression (8x + 4) inches represents the perimeter of a rectangle whose width is (3x − 4) inches. Find the length of the rectangle if x = 2.
8 in.
7 in.
9 in.
10 in.
300s
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• Q10
10. Find the GCF 18a, 24ab
6a
6ab
18a
12a
300s
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• Q11
11. Find the GCF 10rs, 35rst
5r
10rs
5rst
5rs
300s
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• Q12
12. Simplify -2(x -10)
8x
-2x - 10
12x
-2x + 10
30s
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