If you add 7 to a number, multiply the sum by 3, and subtract 47 from the product, you will get the number you started with. What is the number?

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asked Oct 22, 2018 73.2k views

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Zosim · Answer 1 · 2018-10-27T15:45:51+0000

The number is 13.
we can calculate this as;
let x is the number
((x + 7) x 3) - 47) = x
(3x + 21) - 47 = x
3x + 21 - x = 47
2x + 21 = 47
2x = 47 - 21
2x = 26
x = 26/2
x = 13

If you add 7 to a number, multiply the sum by 3, and subtract 47 from the product, you will get the number you started with. What is the number?

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