2 Answers

Fanisch · Answer 1 · 2016-03-25T15:17:21+0000

Let's call "the myster number" x, so five times the mystery number will be equal to 5x, then we will subtract 27 from 5 times the mystery number and that will be equal to, 5x-27 and that is equal to 83, so let' solve :

$5x-27=83\\ 5x-27+27=83+27\\ 5x=110\\ \frac { 5x }{ 5 } =\frac { 110 }{ 5 } \\ x=22\\ The\quad mystery\quad number\\ is\quad 22$

Ben Hirschberg · Answer 2 · 2016-03-28T22:22:20+0000

Let's call the mystery number x.
Start off with multiplying x by 5.
Your equation so far is 5x.
Next we subtract 27
5x - 27
Our solution is 83
5x - 27 = 83
Add 27 to both sides
5x = 110
Divide both sides by 5
x = 22

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