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Solving one step equations

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Equation
Solution
z - 2 = 2   z = 4  
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x - 4 = 4   x = 8  
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x - 9 = -7   x = 2  
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z - 9 = -2   z = 7  
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y + 2 = 6   y = 4  
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z + 5 = 8   z = 3  
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7 + y = 16   y = 9  
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3 + y = 7   y = 4  
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z + 3 = 8   z = 5  
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z - 3 = -1   z = 2  
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z - 7 = -1   z = 6  
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z + 9 = 14   z = 5  
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y + 9 = 11   y = 2  
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x - 6 = 1   x = 7  
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y - 8 = -4   y = 4  
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x + 4 = 6   x = 2  
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y - 3 = 1   y = 4  
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4 + y = 13   y = 9  
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x + 8 = 13   x = 5  
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3 + z = 12   z = 9  
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x - 2 = 1   x = 3  
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6 + z = 14   z = 8  
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z + 5 = 7   z = 2  
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x + 8 = 11   x = 3  
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x - 7 = -4   x = 3  
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y + 4 = 12   y = 8  
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5 + z = 12   z = 7  
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y - 6 = 1   y = 7  
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z - 4 = -1   z = 3  
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y + 9 = 16   y = 7  
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-3x = 18   x = -6  
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y/5 = -20   y = -100  
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5z = 15   z = 3  
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6x = - 30   x = -5  
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x/9 = -2   x = -18  
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2x = 20   x = 10  
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z/4 = -7   z = -28  
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x/-3 = 33   x = -99  
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2z = 14   z = 7  
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3y = 45   15  
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7x=21   3  
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30y+10   =60  
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Created by: cstoner
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