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17-04-2018
Mathematics

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Albert thought of a number, added 5, multiplied the result by 2, took away 6 and then divided by 2 to give an answer of 8. What number did Albert think of to get his answer? 5 6 3 4

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17-04-2018

Let the number be x.

[2(x + 5) - 6 ] ÷ 2 = 8
[2x + 10 - 6 ] ÷ 2 = 8
[2x + 4] ÷ 2 = 8
x + 2 = 8
x = 8 - 2
x = 6

Answer: The number is 6.

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