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John D
John D, BS Degree in Engineering.
Category: General
Satisfied Customers: 9666
Experience:  Math, science and 25 years experience in computer programming
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3x - 5x + x

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3x - 5x + x =

first add the positive numbers together (i.e. 3x and x) , then subtract 5x from the sum

3x + x = 4x

4x - 5x = - x

Answer: - x


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