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Unit 4: One Step
Equations Review
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X + 29 = 82
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X – 4.3 = 13
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3 14 2
x
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1.2X = 18
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X ÷ 8 = 23
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The area of a rectangle is 98 sq. mm. If the length of
the rectangle is 14 mm, what is the width? Write an
equation AND solve.(Area of a rectangle = length · width)
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1 11 24 3x
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X -74 = 123
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X ÷ 0.7 = 1.3
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3 37 4
x
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The perimeter of a triangle is 72 inches. One side measures 31 inches, and another side measures 16 inches. What is the length of the third side?
Write an equation AND solve.
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19.2 = x + 5.01
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4 39 4
x
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807 = 3x
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X - 27 = 39
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The area of a triangle is 50 sq. cm. The base measures 10 cm. What is the height of
the triangle. Write an equation AND solve.
(Area of a triangle = ½ · b · h)
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618x
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0.6x = 3.48
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X - 268 = 102
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1 1022 11x
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X – 23.1 = 6.72
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The distance from McClure to the GA Aquarium is 37 miles. You
know The Varsity is 8 miles from the GA Aquarium. Write an
equation AND solve to find the distance from McClure to The
Varsity.
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37 105
x
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2.52 = 12X
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5 58 6
x
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17 years ago Michael Jordan broke the record for the most
consecutive games played. If Mr. Jordan is 42 today, how old was he when he broke the record? Write
an equation AND solve.
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Answers 1. Title slide2. X = 533. X = 17.34. X = ¼5. X = 156. X = 1847. 14x = 98 X= 7mm8. X =9. X = 19710. x = 0.91
13115
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Answers Continued11. X =12. 72 = 31 + 16 + x OR 72 = 47 + x x = 25 in. 13. X = 14.1914. X = ⅓15. X = 26916. X = 6617. 50 = ½ · 10 · h OR 50 = 5h h = 10 cm.18. X = 10819. X = 5.820. X = 370
5128
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Answers Continued
21. X =22. X = 29.8223. X + 8 = 37 x = 29 miles24. X =25. X = 0.2126. X = 27. X + 17 = 42 x = 25 years old
411
225
524