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Sum
The sum of three times a number and 11 is 32. Find the number.
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Solution
If the unknown number is taken to be x, then three times the number is 3x and the sum of 3x and 11 is 32.
That is, 3x + 11 = 32.
3x = 32 – 11
3x = 21
Now, divide both sides by 3
So, x = `21/3` = 7
The required number is 7.
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