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26-07-2018
Mathematics

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If 5 is added to a number and the sum is doubled, the result is 7 less than the number. What is the number? Write your answer as a number only.

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3ricaaa 3ricaaa

26-07-2018

2(n + 5) = n - 7
Distribute the 2.

2n + 10 = n - 7
Subtract n.

n + 10 = -7
Subtract 10.

n = -17
Your answer!

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